Prerelease v0.33.0-rc.1

Increase control over output metadata (#3856 )
Add withX and keepX functions to take advantage of libvips 8.15.0 new 'keep' metadata feature.
2026-02-04 13:46:19 +01:00 · 2023-11-22 10:16:48 +00:00 · 2023-11-22 09:03:57 +00:00 · 2023-11-19 13:19:34 +00:00 · 2023-11-16 11:18:58 +00:00 · 2023-11-15 19:28:18 +00:00
50 changed files with 1133 additions and 377 deletions
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -161,6 +161,39 @@ jobs:
            npm install --ignore-scripts
            npx mocha --no-config --spec=test/unit/io.js --timeout=30000
            [[ -n $prebuild_upload ]] && cd src && ln -s ../package.json && npx prebuild || true
+  github-runner-emscripten:
+    permissions:
+      contents: write
+    name: wasm32 - prebuild
+    runs-on: ubuntu-22.04
+    container: "emscripten/emsdk:3.1.48"
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Dependencies
+        run: apt-get update && apt-get install -y pkg-config
+      - name: Dependencies (Node.js)
+        uses: actions/setup-node@v3
+        with:
+          node-version: "20"
+      - name: Install
+        run: emmake npm install --build-from-source
+      - name: Test
+        run: emmake npm test
+      - name: Test packaging
+        run: |
+          emmake npm run package-from-local-build
+          npm pkg set "optionalDependencies.@img/sharp-wasm32=file:./npm/wasm32"
+          npm run clean
+          rm -r node_modules/@img/sharp-linux-x64
+          npm install --cpu=wasm32
+          npm test
+      - name: Prebuild
+        if: startsWith(github.ref, 'refs/tags/')
+        env:
+          npm_config_nodedir: emscripten
+          prebuild_upload: ${{ secrets.GITHUB_TOKEN }}
+        run: cd src && ln -s ../package.json && emmake npx prebuild --platform=emscripten --arch=wasm32 --strip=0
  macstadium-runner:
    permissions:
      contents: write
--- a/.github/workflows/npm.yml
+++ b/.github/workflows/npm.yml
@@ -112,10 +112,8 @@ jobs:
        with:
          path: release.mjs
          contents: |
-            import { createRequire } from 'node:module';
            import { deepStrictEqual } from 'node:assert';
-            const require = createRequire(import.meta.url);
-            const sharp = require('sharp');
+            import sharp from 'sharp';
            deepStrictEqual(['.jpg', '.jpeg', '.jpe'], sharp.format.jpeg.input.fileSuffix);

      - name: Run with Node.js + npm
--- a/docs/api-colour.md
+++ b/docs/api-colour.md
@@ -1,7 +1,7 @@
 ## tint
-> tint(rgb) ⇒ <code>Sharp</code>
+> tint(tint) ⇒ <code>Sharp</code>

-Tint the image using the provided chroma while preserving the image luminance.
+Tint the image using the provided colour.
 An alpha channel may be present and will be unchanged by the operation.


@@ -12,7 +12,7 @@ An alpha channel may be present and will be unchanged by the operation.

 | Param | Type | Description |
 | --- | --- | --- |
-| rgb | <code>string</code> \| <code>Object</code> | parsed by the [color](https://www.npmjs.org/package/color) module to extract chroma values. |
+| tint | <code>string</code> \| <code>Object</code> | Parsed by the [color](https://www.npmjs.org/package/color) module. |

 **Example**  
 ```js
--- a/docs/api-output.md
+++ b/docs/api-output.md
@@ -111,17 +111,157 @@ await sharp(pixelArray, { raw: { width, height, channels } })
 ```


+## keepExif
+> keepExif() ⇒ <code>Sharp</code>
+
+Keep all EXIF metadata from the input image in the output image.
+
+EXIF metadata is unsupported for TIFF output.
+
+
+**Since**: 0.33.0  
+**Example**  
+```js
+const outputWithExif = await sharp(inputWithExif)
+  .keepExif()
+  .toBuffer();
+```
+
+
+## withExif
+> withExif(exif) ⇒ <code>Sharp</code>
+
+Set EXIF metadata in the output image, ignoring any EXIF in the input image.
+
+
+**Throws**:
+
+- <code>Error</code> Invalid parameters
+
+**Since**: 0.33.0  
+
+| Param | Type | Description |
+| --- | --- | --- |
+| exif | <code>Object.&lt;string, Object.&lt;string, string&gt;&gt;</code> | Object keyed by IFD0, IFD1 etc. of key/value string pairs to write as EXIF data. |
+
+**Example**  
+```js
+const dataWithExif = await sharp(input)
+  .withExif({
+    IFD0: {
+      Copyright: 'The National Gallery'
+    },
+    IFD3: {
+      GPSLatitudeRef: 'N',
+      GPSLatitude: '51/1 30/1 3230/100',
+      GPSLongitudeRef: 'W',
+      GPSLongitude: '0/1 7/1 4366/100'
+    }
+  })
+  .toBuffer();
+```
+
+
+## withExifMerge
+> withExifMerge(exif) ⇒ <code>Sharp</code>
+
+Update EXIF metadata from the input image in the output image.
+
+
+**Throws**:
+
+- <code>Error</code> Invalid parameters
+
+**Since**: 0.33.0  
+
+| Param | Type | Description |
+| --- | --- | --- |
+| exif | <code>Object.&lt;string, Object.&lt;string, string&gt;&gt;</code> | Object keyed by IFD0, IFD1 etc. of key/value string pairs to write as EXIF data. |
+
+**Example**  
+```js
+const dataWithMergedExif = await sharp(inputWithExif)
+  .withExifMerge({
+    IFD0: {
+      Copyright: 'The National Gallery'
+    }
+  })
+  .toBuffer();
+```
+
+
+## keepIccProfile
+> keepIccProfile() ⇒ <code>Sharp</code>
+
+Keep ICC profile from the input image in the output image.
+
+Where necessary, will attempt to convert the output colour space to match the profile.
+
+
+**Since**: 0.33.0  
+**Example**  
+```js
+const outputWithIccProfile = await sharp(inputWithIccProfile)
+  .keepIccProfile()
+  .toBuffer();
+```
+
+
+## withIccProfile
+> withIccProfile(icc, [options]) ⇒ <code>Sharp</code>
+
+Transform using an ICC profile and attach to the output image.
+
+This can either be an absolute filesystem path or
+built-in profile name (`srgb`, `p3`, `cmyk`).
+
+
+**Throws**:
+
+- <code>Error</code> Invalid parameters
+
+**Since**: 0.33.0  
+
+| Param | Type | Default | Description |
+| --- | --- | --- | --- |
+| icc | <code>string</code> |  | Absolute filesystem path to output ICC profile or built-in profile name (srgb, p3, cmyk). |
+| [options] | <code>Object</code> |  |  |
+| [options.attach] | <code>number</code> | <code>true</code> | Should the ICC profile be included in the output image metadata? |
+
+**Example**  
+```js
+const outputWithP3 = await sharp(input)
+  .withIccProfile('p3')
+  .toBuffer();
+```
+
+
+## keepMetadata
+> keepMetadata() ⇒ <code>Sharp</code>
+
+Keep all metadata (EXIF, ICC, XMP, IPTC) from the input image in the output image.
+
+The default behaviour, when `keepMetadata` is not used, is to convert to the device-independent
+sRGB colour space and strip all metadata, including the removal of any ICC profile.
+
+
+**Since**: 0.33.0  
+**Example**  
+```js
+const outputWithMetadata = await sharp(inputWithMetadata)
+  .keepMetadata()
+  .toBuffer();
+```
+
+
 ## withMetadata
 > withMetadata([options]) ⇒ <code>Sharp</code>

-Include all metadata (EXIF, XMP, IPTC) from the input image in the output image.
-This will also convert to and add a web-friendly sRGB ICC profile if appropriate,
-unless a custom output profile is provided.
+Keep most metadata (EXIF, XMP, IPTC) from the input image in the output image.

-The default behaviour, when `withMetadata` is not used, is to convert to the device-independent
-sRGB colour space and strip all metadata, including the removal of any ICC profile.
+This will also convert to and add a web-friendly sRGB ICC profile if appropriate.

-EXIF metadata is unsupported for TIFF output.
+Allows orientation and density to be set or updated.


 **Throws**:
@@ -129,38 +269,16 @@ EXIF metadata is unsupported for TIFF output.
 - <code>Error</code> Invalid parameters


-| Param | Type | Default | Description |
-| --- | --- | --- | --- |
-| [options] | <code>Object</code> |  |  |
-| [options.orientation] | <code>number</code> |  | value between 1 and 8, used to update the EXIF `Orientation` tag. |
-| [options.icc] | <code>string</code> | <code>&quot;&#x27;srgb&#x27;&quot;</code> | Filesystem path to output ICC profile, relative to `process.cwd()`, defaults to built-in sRGB. |
-| [options.exif] | <code>Object.&lt;Object&gt;</code> | <code>{}</code> | Object keyed by IFD0, IFD1 etc. of key/value string pairs to write as EXIF data. |
-| [options.density] | <code>number</code> |  | Number of pixels per inch (DPI). |
+| Param | Type | Description |
+| --- | --- | --- |
+| [options] | <code>Object</code> |  |
+| [options.orientation] | <code>number</code> | Used to update the EXIF `Orientation` tag, integer between 1 and 8. |
+| [options.density] | <code>number</code> | Number of pixels per inch (DPI). |

 **Example**  
 ```js
-sharp('input.jpg')
+const outputSrgbWithMetadata = await sharp(inputRgbWithMetadata)
  .withMetadata()
-  .toFile('output-with-metadata.jpg')
-  .then(info => { ... });
-```
-**Example**  
-```js
-// Set output EXIF metadata
-const data = await sharp(input)
-  .withMetadata({
-    exif: {
-      IFD0: {
-        Copyright: 'The National Gallery'
-      },
-      IFD3: {
-        GPSLatitudeRef: 'N',
-        GPSLatitude: '51/1 30/1 3230/100',
-        GPSLongitudeRef: 'W',
-        GPSLongitude: '0/1 7/1 4366/100'
-      }
-    }
-  })
  .toBuffer();
 ```
 **Example**  
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -14,9 +14,18 @@ Requires libvips v8.15.0

 * Remove `sharp.vendor`.

+* Partially deprecate `withMetadata()`, use `withExif()` and `withIccProfile()`.
+
+* Add experimental support for WebAssembly-based runtimes.
+  [@RReverser](https://github.com/RReverser)
+
 * Options for `trim` operation must be an Object, add new `lineArt` option.
  [#2363](https://github.com/lovell/sharp/issues/2363)

+* Improve luminance of `tint` operation with weighting function.
+  [#3338](https://github.com/lovell/sharp/issues/3338)
+  [@jcupitt](https://github.com/jcupitt)
+
 * Ensure all `Error` objects contain a `stack` property.
  [#3653](https://github.com/lovell/sharp/issues/3653)

@@ -34,6 +43,9 @@ Requires libvips v8.15.0
  [#3823](https://github.com/lovell/sharp/pull/3823)
  [@uhthomas](https://github.com/uhthomas)

+* Add more fine-grained control over output metadata.
+  [#3824](https://github.com/lovell/sharp/issues/3824)
+
 * Ensure multi-page extract remains sequential.
  [#3837](https://github.com/lovell/sharp/issues/3837)

--- a/docs/humans.txt
+++ b/docs/humans.txt
@@ -278,3 +278,6 @@ GitHub: https://github.com/bianjunjie1981

 Name: Dennis Beatty
 GitHub: https://github.com/dnsbty
+
+Name: Ingvar Stepanyan
+GitHub: https://github.com/RReverser
--- a/docs/install.md
+++ b/docs/install.md
@@ -78,6 +78,15 @@ For cross-compiling, the `--platform`, `--arch` and `--libc` npm flags
 (or the `npm_config_platform`, `npm_config_arch` and `npm_config_libc` environment variables)
 can be used to configure the target environment.

+## WebAssembly
+
+Experimental support is provided for runtime environments that provide
+multi-threaded Wasm via Workers.
+
+```sh
+npm install --cpu=wasm32 sharp
+```
+
 ## FreeBSD

 The `vips` package must be installed before `npm install` is run.
@@ -117,6 +126,16 @@ depending on the chosen architecture.
 When building your deployment package on a machine that differs from the target architecture,
 you will need to install either `@img/sharp-linux-x64` or `@img/sharp-linux-arm64` package.

+```sh
+npm install --os=linux --cpu=x64 sharp
+```
+
+```sh
+npm install --os=linux --cpu=arm64 sharp
+```
+
+When using npm 9 or earlier, this can be achieved using the following:
+
 ```sh
 npm install --force @img/sharp-linux-x64
 ```
@@ -174,7 +193,7 @@ custom:
      - sharp
    packagerOptions:
      scripts:
-        - npm install --force @img/sharp-linux-x64
+        - npm install --os=linux --cpu=x64 sharp
 ```

 ## TypeScript
@@ -213,19 +232,6 @@ use the `FONTCONFIG_PATH` environment variable to point to a custom location.

 Embedded SVG fonts are unsupported.

-## Worker threads
-
-On some platforms, including glibc-based Linux,
-the main thread must call `require('sharp')`
-_before_ worker threads are created.
-This is to ensure shared libraries remain loaded in memory
-until after all threads are complete.
-
-Without this, the following error may occur:
-```
-Module did not self-register
-```
-
 ## Known conflicts

 ### Canvas and Windows
--- a/docs/search-index.json
+++ b/docs/search-index.json
--- a/lib/colour.js
+++ b/lib/colour.js
@@ -19,7 +19,7 @@ const colourspace = {
 };

 /**
- * Tint the image using the provided chroma while preserving the image luminance.
+ * Tint the image using the provided colour.
 * An alpha channel may be present and will be unchanged by the operation.
 *
 * @example
@@ -27,14 +27,12 @@ const colourspace = {
 *   .tint({ r: 255, g: 240, b: 16 })
 *   .toBuffer();
 *
- * @param {string|Object} rgb - parsed by the [color](https://www.npmjs.org/package/color) module to extract chroma values.
+ * @param {string|Object} tint - Parsed by the [color](https://www.npmjs.org/package/color) module.
 * @returns {Sharp}
 * @throws {Error} Invalid parameter
 */
-function tint (rgb) {
-  const colour = color(rgb);
-  this.options.tintA = colour.a();
-  this.options.tintB = colour.b();
+function tint (tint) {
+  this._setBackgroundColourOption('tint', tint);
  return this;
 }

--- a/lib/constructor.js
+++ b/lib/constructor.js
@@ -212,8 +212,7 @@ const Sharp = function (input, options) {
    kernel: 'lanczos3',
    fastShrinkOnLoad: true,
    // operations
-    tintA: 128,
-    tintB: 128,
+    tint: [-1, 0, 0, 0],
    flatten: false,
    flattenBackground: [0, 0, 0],
    unflatten: false,
@@ -258,11 +257,12 @@ const Sharp = function (input, options) {
    fileOut: '',
    formatOut: 'input',
    streamOut: false,
-    withMetadata: false,
+    keepMetadata: 0,
    withMetadataOrientation: -1,
    withMetadataDensity: 0,
-    withMetadataIcc: '',
-    withMetadataStrs: {},
+    withIccProfile: '',
+    withExif: {},
+    withExifMerge: true,
    resolveWithObject: false,
    // output format
    jpegQuality: 80,
--- a/lib/index.d.ts
+++ b/lib/index.d.ts
@@ -239,12 +239,12 @@ declare namespace sharp {
        //#region Color functions

        /**
-         * Tint the image using the provided chroma while preserving the image luminance.
+         * Tint the image using the provided colour.
         * An alpha channel may be present and will be unchanged by the operation.
-         * @param rgb Parsed by the color module to extract chroma values.
+         * @param tint Parsed by the color module.
         * @returns A sharp instance that can be used to chain operations
         */
-        tint(rgb: Color): Sharp;
+        tint(tint: Color): Sharp;

        /**
         * Convert to 8-bit greyscale; 256 shades of grey.
@@ -633,6 +633,43 @@ declare namespace sharp {
         */
        toBuffer(options: { resolveWithObject: true }): Promise<{ data: Buffer; info: OutputInfo }>;

+        /**
+         * Keep all EXIF metadata from the input image in the output image.
+         * EXIF metadata is unsupported for TIFF output.
+         * @returns A sharp instance that can be used to chain operations
+         */
+        keepExif(): Sharp;
+
+        /**
+         * Set EXIF metadata in the output image, ignoring any EXIF in the input image.
+         * @param {Exif} exif Object keyed by IFD0, IFD1 etc. of key/value string pairs to write as EXIF data.
+         * @returns A sharp instance that can be used to chain operations
+         * @throws {Error} Invalid parameters
+         */
+        withExif(exif: Exif): Sharp;
+
+        /**
+         * Update EXIF metadata from the input image in the output image.
+         * @param {Exif} exif Object keyed by IFD0, IFD1 etc. of key/value string pairs to write as EXIF data.
+         * @returns A sharp instance that can be used to chain operations
+         * @throws {Error} Invalid parameters
+         */
+        withExifMerge(exif: Exif): Sharp;
+
+        /**
+         * Keep ICC profile from the input image in the output image where possible.
+         * @returns A sharp instance that can be used to chain operations
+         */
+        keepIccProfile(): Sharp;
+
+        /**
+         * Transform using an ICC profile and attach to the output image.
+         * @param {string} icc - Absolute filesystem path to output ICC profile or built-in profile name (srgb, p3, cmyk).
+         * @returns A sharp instance that can be used to chain operations
+         * @throws {Error} Invalid parameters
+         */
+        withIccProfile(icc: string, options?: WithIccProfileOptions): Sharp;
+
        /**
         * Include all metadata (EXIF, XMP, IPTC) from the input image in the output image.
         * The default behaviour, when withMetadata is not used, is to strip all metadata and convert to the device-independent sRGB colour space.
@@ -640,7 +677,7 @@ declare namespace sharp {
         * @param withMetadata
         * @throws {Error} Invalid parameters.
         */
-        withMetadata(withMetadata?: boolean | WriteableMetadata): Sharp;
+        withMetadata(withMetadata?: WriteableMetadata): Sharp;

        /**
         * Use these JPEG options for output image.
@@ -978,15 +1015,32 @@ declare namespace sharp {
        wrap?: TextWrap;
    }

+    interface ExifDir {
+        [k: string]: string;
+    }
+
+    interface Exif {
+        'IFD0'?: ExifDir;
+        'IFD1'?: ExifDir;
+        'IFD2'?: ExifDir;
+        'IFD3'?: ExifDir;
+    }
+
    interface WriteableMetadata {
-        /** Value between 1 and 8, used to update the EXIF Orientation tag. */
-        orientation?: number | undefined;
-        /** Filesystem path to output ICC profile, defaults to sRGB. */
-        icc?: string | undefined;
-        /** Object keyed by IFD0, IFD1 etc. of key/value string pairs to write as EXIF data. (optional, default {}) */
-        exif?: Record<string, any> | undefined;
        /** Number of pixels per inch (DPI) */
        density?: number | undefined;
+        /** Value between 1 and 8, used to update the EXIF Orientation tag. */
+        orientation?: number | undefined;
+        /**
+         * Filesystem path to output ICC profile, defaults to sRGB.
+         * @deprecated Use `withIccProfile()` instead.
+        */
+        icc?: string | undefined;
+        /**
+         * Object keyed by IFD0, IFD1 etc. of key/value string pairs to write as EXIF data.
+         * @deprecated Use `withExif()` or `withExifMerge()` instead.
+         */
+        exif?: Exif | undefined;
    }

    interface Metadata {
@@ -1096,6 +1150,11 @@ declare namespace sharp {
        force?: boolean | undefined;
    }

+    interface WithIccProfileOptions {
+        /**  Should the ICC profile be included in the output image metadata? (optional, default true) */
+        attach?: boolean | undefined;
+    }
+
    interface JpegOptions extends OutputOptions {
        /** Quality, integer 1-100 (optional, default 80) */
        quality?: number | undefined;
--- a/lib/libvips.js
+++ b/lib/libvips.js
@@ -16,7 +16,7 @@ const minimumLibvipsVersion = semverCoerce(minimumLibvipsVersionLabelled).versio

 const prebuiltPlatforms = [
  'darwin-arm64', 'darwin-x64',
-  'linux-arm', 'linux-arm64', 'linux-x64',
+  'linux-arm', 'linux-arm64', 'linux-s390x', 'linux-x64',
  'linuxmusl-arm64', 'linuxmusl-x64',
  'win32-ia32', 'win32-x64'
 ];
@@ -41,15 +41,23 @@ const runtimePlatformArch = () => `${process.platform}${runtimeLibc()}-${process

 /* istanbul ignore next */
 const buildPlatformArch = () => {
+  if (isEmscripten()) {
+    return 'wasm32';
+  }
  /* eslint camelcase: ["error", { allow: ["^npm_config_"] }] */
  const { npm_config_arch, npm_config_platform, npm_config_libc } = process.env;
-  return `${npm_config_platform || process.platform}${npm_config_libc || runtimeLibc()}-${npm_config_arch || process.arch}`;
+  const libc = typeof npm_config_libc === 'string' ? npm_config_libc : runtimeLibc();
+  return `${npm_config_platform || process.platform}${libc}-${npm_config_arch || process.arch}`;
 };

 const buildSharpLibvipsIncludeDir = () => {
  try {
-    return require('@img/sharp-libvips-dev/include');
-  } catch {}
+    return require(`@img/sharp-libvips-dev-${buildPlatformArch()}/include`);
+  } catch {
+    try {
+      return require('@img/sharp-libvips-dev/include');
+    } catch {}
+  }
  /* istanbul ignore next */
  return '';
 };
@@ -64,12 +72,22 @@ const buildSharpLibvipsCPlusPlusDir = () => {

 const buildSharpLibvipsLibDir = () => {
  try {
-    return require(`@img/sharp-libvips-${buildPlatformArch()}/lib`);
-  } catch {}
+    return require(`@img/sharp-libvips-dev-${buildPlatformArch()}/lib`);
+  } catch {
+    try {
+      return require(`@img/sharp-libvips-${buildPlatformArch()}/lib`);
+    } catch {}
+  }
  /* istanbul ignore next */
  return '';
 };

+/* istanbul ignore next */
+const isEmscripten = () => {
+  const { CC } = process.env;
+  return Boolean(CC && CC.endsWith('/emcc'));
+};
+
 const isRosetta = () => {
  /* istanbul ignore next */
  if (process.platform === 'darwin' && process.arch === 'x64') {
@@ -81,7 +99,7 @@ const isRosetta = () => {

 /* istanbul ignore next */
 const spawnRebuild = () =>
-  spawnSync('node-gyp rebuild --directory=src', {
+  spawnSync(`node-gyp rebuild --directory=src ${isEmscripten() ? '--nodedir=emscripten' : ''}`, {
    ...spawnSyncOptions,
    stdio: 'inherit'
  }).status;
--- a/lib/output.js
+++ b/lib/output.js
@@ -163,39 +163,185 @@ function toBuffer (options, callback) {
 }

 /**
- * Include all metadata (EXIF, XMP, IPTC) from the input image in the output image.
- * This will also convert to and add a web-friendly sRGB ICC profile if appropriate,
- * unless a custom output profile is provided.
- *
- * The default behaviour, when `withMetadata` is not used, is to convert to the device-independent
- * sRGB colour space and strip all metadata, including the removal of any ICC profile.
+ * Keep all EXIF metadata from the input image in the output image.
 *
 * EXIF metadata is unsupported for TIFF output.
 *
- * @example
- * sharp('input.jpg')
- *   .withMetadata()
- *   .toFile('output-with-metadata.jpg')
- *   .then(info => { ... });
+ * @since 0.33.0
 *
 * @example
- * // Set output EXIF metadata
- * const data = await sharp(input)
- *   .withMetadata({
- *     exif: {
- *       IFD0: {
- *         Copyright: 'The National Gallery'
- *       },
- *       IFD3: {
- *         GPSLatitudeRef: 'N',
- *         GPSLatitude: '51/1 30/1 3230/100',
- *         GPSLongitudeRef: 'W',
- *         GPSLongitude: '0/1 7/1 4366/100'
- *       }
+ * const outputWithExif = await sharp(inputWithExif)
+ *   .keepExif()
+ *   .toBuffer();
+ *
+ * @returns {Sharp}
+ */
+function keepExif () {
+  this.options.keepMetadata |= 0b00001;
+  return this;
+}
+
+/**
+ * Set EXIF metadata in the output image, ignoring any EXIF in the input image.
+ *
+ * @since 0.33.0
+ *
+ * @example
+ * const dataWithExif = await sharp(input)
+ *   .withExif({
+ *     IFD0: {
+ *       Copyright: 'The National Gallery'
+ *     },
+ *     IFD3: {
+ *       GPSLatitudeRef: 'N',
+ *       GPSLatitude: '51/1 30/1 3230/100',
+ *       GPSLongitudeRef: 'W',
+ *       GPSLongitude: '0/1 7/1 4366/100'
 *     }
 *   })
 *   .toBuffer();
 *
+ * @param {Object<string, Object<string, string>>} exif Object keyed by IFD0, IFD1 etc. of key/value string pairs to write as EXIF data.
+ * @returns {Sharp}
+ * @throws {Error} Invalid parameters
+ */
+function withExif (exif) {
+  if (is.object(exif)) {
+    for (const [ifd, entries] of Object.entries(exif)) {
+      if (is.object(entries)) {
+        for (const [k, v] of Object.entries(entries)) {
+          if (is.string(v)) {
+            this.options.withExif[`exif-${ifd.toLowerCase()}-${k}`] = v;
+          } else {
+            throw is.invalidParameterError(`${ifd}.${k}`, 'string', v);
+          }
+        }
+      } else {
+        throw is.invalidParameterError(ifd, 'object', entries);
+      }
+    }
+  } else {
+    throw is.invalidParameterError('exif', 'object', exif);
+  }
+  this.options.withExifMerge = false;
+  return this.keepExif();
+}
+
+/**
+ * Update EXIF metadata from the input image in the output image.
+ *
+ * @since 0.33.0
+ *
+ * @example
+ * const dataWithMergedExif = await sharp(inputWithExif)
+ *   .withExifMerge({
+ *     IFD0: {
+ *       Copyright: 'The National Gallery'
+ *     }
+ *   })
+ *   .toBuffer();
+ *
+ * @param {Object<string, Object<string, string>>} exif Object keyed by IFD0, IFD1 etc. of key/value string pairs to write as EXIF data.
+ * @returns {Sharp}
+ * @throws {Error} Invalid parameters
+ */
+function withExifMerge (exif) {
+  this.withExif(exif);
+  this.options.withExifMerge = true;
+  return this;
+}
+
+/**
+ * Keep ICC profile from the input image in the output image.
+ *
+ * Where necessary, will attempt to convert the output colour space to match the profile.
+ *
+ * @since 0.33.0
+ *
+ * @example
+ * const outputWithIccProfile = await sharp(inputWithIccProfile)
+ *   .keepIccProfile()
+ *   .toBuffer();
+ *
+ * @returns {Sharp}
+ */
+function keepIccProfile () {
+  this.options.keepMetadata |= 0b01000;
+  return this;
+}
+
+/**
+ * Transform using an ICC profile and attach to the output image.
+ *
+ * This can either be an absolute filesystem path or
+ * built-in profile name (`srgb`, `p3`, `cmyk`).
+ *
+ * @since 0.33.0
+ *
+ * @example
+ * const outputWithP3 = await sharp(input)
+ *   .withIccProfile('p3')
+ *   .toBuffer();
+ *
+ * @param {string} icc - Absolute filesystem path to output ICC profile or built-in profile name (srgb, p3, cmyk).
+ * @param {Object} [options]
+ * @param {number} [options.attach=true] Should the ICC profile be included in the output image metadata?
+ * @returns {Sharp}
+ * @throws {Error} Invalid parameters
+ */
+function withIccProfile (icc, options) {
+  if (is.string(icc)) {
+    this.options.withIccProfile = icc;
+  } else {
+    throw is.invalidParameterError('icc', 'string', icc);
+  }
+  this.keepIccProfile();
+  if (is.object(options)) {
+    if (is.defined(options.attach)) {
+      if (is.bool(options.attach)) {
+        if (!options.attach) {
+          this.options.keepMetadata &= ~0b01000;
+        }
+      } else {
+        throw is.invalidParameterError('attach', 'boolean', options.attach);
+      }
+    }
+  }
+  return this;
+}
+
+/**
+ * Keep all metadata (EXIF, ICC, XMP, IPTC) from the input image in the output image.
+ *
+ * The default behaviour, when `keepMetadata` is not used, is to convert to the device-independent
+ * sRGB colour space and strip all metadata, including the removal of any ICC profile.
+ *
+ * @since 0.33.0
+ *
+ * @example
+ * const outputWithMetadata = await sharp(inputWithMetadata)
+ *   .keepMetadata()
+ *   .toBuffer();
+ *
+ * @returns {Sharp}
+ */
+function keepMetadata () {
+  this.options.keepMetadata = 0b11111;
+  return this;
+}
+
+/**
+ * Keep most metadata (EXIF, XMP, IPTC) from the input image in the output image.
+ *
+ * This will also convert to and add a web-friendly sRGB ICC profile if appropriate.
+ *
+ * Allows orientation and density to be set or updated.
+ *
+ * @example
+ * const outputSrgbWithMetadata = await sharp(inputRgbWithMetadata)
+ *   .withMetadata()
+ *   .toBuffer();
+ *
 * @example
 * // Set output metadata to 96 DPI
 * const data = await sharp(input)
@@ -203,15 +349,14 @@ function toBuffer (options, callback) {
 *   .toBuffer();
 *
 * @param {Object} [options]
- * @param {number} [options.orientation] value between 1 and 8, used to update the EXIF `Orientation` tag.
- * @param {string} [options.icc='srgb'] Filesystem path to output ICC profile, relative to `process.cwd()`, defaults to built-in sRGB.
- * @param {Object<Object>} [options.exif={}] Object keyed by IFD0, IFD1 etc. of key/value string pairs to write as EXIF data.
+ * @param {number} [options.orientation] Used to update the EXIF `Orientation` tag, integer between 1 and 8.
 * @param {number} [options.density] Number of pixels per inch (DPI).
 * @returns {Sharp}
 * @throws {Error} Invalid parameters
 */
 function withMetadata (options) {
-  this.options.withMetadata = is.bool(options) ? options : true;
+  this.keepMetadata();
+  this.withIccProfile('srgb');
  if (is.object(options)) {
    if (is.defined(options.orientation)) {
      if (is.integer(options.orientation) && is.inRange(options.orientation, 1, 8)) {
@@ -228,30 +373,10 @@ function withMetadata (options) {
      }
    }
    if (is.defined(options.icc)) {
-      if (is.string(options.icc)) {
-        this.options.withMetadataIcc = options.icc;
-      } else {
-        throw is.invalidParameterError('icc', 'string filesystem path to ICC profile', options.icc);
-      }
+      this.withIccProfile(options.icc);
    }
    if (is.defined(options.exif)) {
-      if (is.object(options.exif)) {
-        for (const [ifd, entries] of Object.entries(options.exif)) {
-          if (is.object(entries)) {
-            for (const [k, v] of Object.entries(entries)) {
-              if (is.string(v)) {
-                this.options.withMetadataStrs[`exif-${ifd.toLowerCase()}-${k}`] = v;
-              } else {
-                throw is.invalidParameterError(`exif.${ifd}.${k}`, 'string', v);
-              }
-            }
-          } else {
-            throw is.invalidParameterError(`exif.${ifd}`, 'object', entries);
-          }
-        }
-      } else {
-        throw is.invalidParameterError('exif', 'object', options.exif);
-      }
+      this.withExifMerge(options.exif);
    }
  }
  return this;
@@ -1407,6 +1532,12 @@ module.exports = function (Sharp) {
    // Public
    toFile,
    toBuffer,
+    keepExif,
+    withExif,
+    withExifMerge,
+    keepIccProfile,
+    withIccProfile,
+    keepMetadata,
    withMetadata,
    toFormat,
    jpeg,
--- a/lib/sharp.js
+++ b/lib/sharp.js
@@ -9,61 +9,78 @@ const { familySync, versionSync } = require('detect-libc');

 const { runtimePlatformArch, prebuiltPlatforms, minimumLibvipsVersion } = require('./libvips');
 const runtimePlatform = runtimePlatformArch();
-const [isLinux, isMacOs, isWindows] = ['linux', 'darwin', 'win32'].map(os => runtimePlatform.startsWith(os));

-/* istanbul ignore next */
-try {
-  // Check for local build
-  module.exports = require(`../src/build/Release/sharp-${runtimePlatform}.node`);
-} catch (errLocal) {
+const paths = [
+  `../src/build/Release/sharp-${runtimePlatform}.node`,
+  '../src/build/Release/sharp-wasm32.node',
+  `@img/sharp-${runtimePlatform}/sharp.node`,
+  '@img/sharp-wasm32/sharp.node'
+];
+
+let sharp;
+const errors = [];
+for (const path of paths) {
  try {
-    // Check for runtime package
-    module.exports = require(`@img/sharp-${runtimePlatform}/sharp.node`);
-  } catch (errPackage) {
-    const help = ['Could not load the "sharp" module at runtime'];
-    if (errLocal.code !== 'MODULE_NOT_FOUND') {
-      help.push(`${errLocal.code}: ${errLocal.message}`);
-    }
-    if (errPackage.code !== 'MODULE_NOT_FOUND') {
-      help.push(`${errPackage.code}: ${errPackage.message}`);
-    }
-    help.push('Possible solutions:');
-    // Common error messages
-    if (prebuiltPlatforms.includes(runtimePlatform)) {
-      help.push('- Add an explicit dependency for the runtime platform:');
-      help.push(`    npm install --force @img/sharp-${runtimePlatform}`);
-    } else {
-      help.push(`- The ${runtimePlatform} platform requires manual installation of libvips >= ${minimumLibvipsVersion}`);
-    }
-    if (isLinux && /symbol not found/i.test(errPackage)) {
-      try {
-        const { engines } = require(`@img/sharp-libvips-${runtimePlatform}/package`);
-        const libcFound = `${familySync()} ${versionSync()}`;
-        const libcRequires = `${engines.musl ? 'musl' : 'glibc'} ${engines.musl || engines.glibc}`;
-        help.push('- Update your OS:');
-        help.push(`    Found ${libcFound}`);
-        help.push(`    Requires ${libcRequires}`);
-      } catch (errEngines) {}
-    }
-    if (isMacOs && /Incompatible library version/.test(errLocal.message)) {
-      help.push('- Update Homebrew:');
-      help.push('    brew update && brew upgrade vips');
-    }
-    if (errPackage.code === 'ERR_DLOPEN_DISABLED') {
-      help.push('- Run Node.js without using the --no-addons flag');
-    }
-    if (process.versions.pnp) {
-      help.push('- Use a supported yarn linker, either pnpm or node-modules:');
-      help.push('    yarn config set nodeLinker node-modules');
-    }
-    // Link to installation docs
-    if (isLinux && /Module did not self-register/.test(errLocal.message + errPackage.message)) {
-      help.push('- Using worker threads on Linux? See https://sharp.pixelplumbing.com/install#worker-threads');
-    } else if (isWindows && /The specified procedure could not be found/.test(errPackage.message)) {
-      help.push('- Using the canvas package on Windows? See https://sharp.pixelplumbing.com/install#canvas-and-windows');
-    } else {
-      help.push('- Consult the installation documentation: https://sharp.pixelplumbing.com/install');
-    }
-    throw new Error(help.join('\n'));
+    sharp = require(path);
+    break;
+  } catch (err) {
+    /* istanbul ignore next */
+    errors.push(err);
  }
 }
+
+/* istanbul ignore next */
+if (sharp) {
+  module.exports = sharp;
+} else {
+  const [isLinux, isMacOs, isWindows] = ['linux', 'darwin', 'win32'].map(os => runtimePlatform.startsWith(os));
+
+  const help = [`Could not load the "sharp" module using the ${runtimePlatform} runtime`];
+  errors.forEach(err => {
+    if (err.code !== 'MODULE_NOT_FOUND') {
+      help.push(`${err.code}: ${err.message}`);
+    }
+  });
+  const messages = errors.map(err => err.message).join(' ');
+  help.push('Possible solutions:');
+  // Common error messages
+  if (prebuiltPlatforms.includes(runtimePlatform)) {
+    const [os, cpu] = runtimePlatform.split('-');
+    help.push('- Add platform-specific dependencies:');
+    help.push(`    npm install --os=${os} --cpu=${cpu} sharp`);
+    help.push('  or');
+    help.push(`    npm install --force @img/sharp-${runtimePlatform}`);
+  } else {
+    help.push(`- Manually install libvips >= ${minimumLibvipsVersion}`);
+    help.push('- Add experimental WebAssembly-based dependencies:');
+    help.push('    npm install --cpu=wasm32 sharp');
+  }
+  if (isLinux && /symbol not found/i.test(messages)) {
+    try {
+      const { engines } = require(`@img/sharp-libvips-${runtimePlatform}/package`);
+      const libcFound = `${familySync()} ${versionSync()}`;
+      const libcRequires = `${engines.musl ? 'musl' : 'glibc'} ${engines.musl || engines.glibc}`;
+      help.push('- Update your OS:');
+      help.push(`    Found ${libcFound}`);
+      help.push(`    Requires ${libcRequires}`);
+    } catch (errEngines) {}
+  }
+  if (isMacOs && /Incompatible library version/.test(messages)) {
+    help.push('- Update Homebrew:');
+    help.push('    brew update && brew upgrade vips');
+  }
+  if (errors.some(err => err.code === 'ERR_DLOPEN_DISABLED')) {
+    help.push('- Run Node.js without using the --no-addons flag');
+  }
+  if (process.versions.pnp) {
+    help.push('- Use a supported yarn linker, either pnpm or node-modules:');
+    help.push('    yarn config set nodeLinker node-modules');
+  }
+  // Link to installation docs
+  if (isWindows && /The specified procedure could not be found/.test(messages)) {
+    help.push('- Using the canvas package on Windows? See https://sharp.pixelplumbing.com/install#canvas-and-windows');
+  } else {
+    help.push('- Consult the installation documentation: https://sharp.pixelplumbing.com/install');
+  }
+  throw new Error(help.join('\n'));
+}
--- a/lib/utility.js
+++ b/lib/utility.js
@@ -59,11 +59,17 @@ let versions = {
 };
 /* istanbul ignore next */
 if (!libvipsVersion.isGlobal) {
-  try {
-    versions = require(`@img/sharp-${runtimePlatform}/versions`);
-  } catch (_) {
+  if (!libvipsVersion.isWasm) {
    try {
-      versions = require(`@img/sharp-libvips-${runtimePlatform}/versions`);
+      versions = require(`@img/sharp-${runtimePlatform}/versions`);
+    } catch (_) {
+      try {
+        versions = require(`@img/sharp-libvips-${runtimePlatform}/versions`);
+      } catch (_) {}
+    }
+  } else {
+    try {
+      versions = require('@img/sharp-wasm32/versions');
    } catch (_) {}
  }
 }
--- a/npm/darwin-arm64/package.json
+++ b/npm/darwin-arm64/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@img/sharp-darwin-arm64",
-  "version": "0.33.0-alpha.10",
+  "version": "0.33.0-rc.1",
  "description": "Prebuilt sharp for use with macOS 64-bit ARM",
  "author": "Lovell Fuller <npm@lovell.info>",
  "homepage": "https://sharp.pixelplumbing.com",
@@ -15,7 +15,7 @@
  },
  "preferUnplugged": true,
  "optionalDependencies": {
-    "@img/sharp-libvips-darwin-arm64": "0.0.3"
+    "@img/sharp-libvips-darwin-arm64": "1.0.0"
  },
  "files": [
    "lib"
--- a/npm/darwin-x64/package.json
+++ b/npm/darwin-x64/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@img/sharp-darwin-x64",
-  "version": "0.33.0-alpha.10",
+  "version": "0.33.0-rc.1",
  "description": "Prebuilt sharp for use with macOS x64",
  "author": "Lovell Fuller <npm@lovell.info>",
  "homepage": "https://sharp.pixelplumbing.com",
@@ -15,7 +15,7 @@
  },
  "preferUnplugged": true,
  "optionalDependencies": {
-    "@img/sharp-libvips-darwin-x64": "0.0.3"
+    "@img/sharp-libvips-darwin-x64": "1.0.0"
  },
  "files": [
    "lib"
--- a/npm/from-github-release.js
+++ b/npm/from-github-release.js
@@ -38,7 +38,8 @@ limitations under the License.
 `;

 workspaces.map(async platform => {
-  const url = `https://github.com/lovell/sharp/releases/download/v${version}/sharp-v${version}-napi-v9-${platform}.tar.gz`;
+  const prebuildPlatform = platform === 'wasm32' ? 'emscripten-wasm32' : platform;
+  const url = `https://github.com/lovell/sharp/releases/download/v${version}/sharp-v${version}-napi-v9-${prebuildPlatform}.tar.gz`;
  const dir = path.join(__dirname, platform);
  const response = await fetch(url);
  if (!response.ok) {
@@ -47,7 +48,7 @@ workspaces.map(async platform => {
  }
  // Extract prebuild tarball
  const lib = path.join(dir, 'lib');
-  await rm(lib, { recursive: true });
+  await rm(lib, { force: true, recursive: true });
  await pipeline(
    Readable.fromWeb(response.body),
    createGunzip(),
@@ -58,9 +59,10 @@ workspaces.map(async platform => {
  await writeFile(path.join(dir, 'README.md'), `# \`${name}\`\n\n${description}.\n${licensing}`);
  // Copy Apache-2.0 LICENSE
  await copyFile(path.join(__dirname, '..', 'LICENSE'), path.join(dir, 'LICENSE'));
-  // Copy Windows-specific files
-  if (platform.startsWith('win32-')) {
-    const sharpLibvipsDir = path.join(require(`@img/sharp-libvips-${platform}/lib`), '..');
+  // Copy files for packages without an explicit sharp-libvips dependency (Windows, wasm)
+  if (platform.startsWith('win') || platform.startsWith('wasm')) {
+    const libvipsPlatform = platform === 'wasm32' ? 'dev-wasm32' : platform;
+    const sharpLibvipsDir = path.join(require(`@img/sharp-libvips-${libvipsPlatform}/lib`), '..');
    // Copy versions.json
    await copyFile(path.join(sharpLibvipsDir, 'versions.json'), path.join(dir, 'versions.json'));
    // Append third party licensing to README
--- a/npm/linux-arm/package.json
+++ b/npm/linux-arm/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@img/sharp-linux-arm",
-  "version": "0.33.0-alpha.10",
+  "version": "0.33.0-rc.1",
  "description": "Prebuilt sharp for use with Linux (glibc) ARM (32-bit)",
  "author": "Lovell Fuller <npm@lovell.info>",
  "homepage": "https://sharp.pixelplumbing.com",
@@ -15,7 +15,7 @@
  },
  "preferUnplugged": true,
  "optionalDependencies": {
-    "@img/sharp-libvips-linux-arm": "0.0.3"
+    "@img/sharp-libvips-linux-arm": "1.0.0"
  },
  "files": [
    "lib"
--- a/npm/linux-arm64/package.json
+++ b/npm/linux-arm64/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@img/sharp-linux-arm64",
-  "version": "0.33.0-alpha.10",
+  "version": "0.33.0-rc.1",
  "description": "Prebuilt sharp for use with Linux (glibc) 64-bit ARM",
  "author": "Lovell Fuller <npm@lovell.info>",
  "homepage": "https://sharp.pixelplumbing.com",
@@ -15,7 +15,7 @@
  },
  "preferUnplugged": true,
  "optionalDependencies": {
-    "@img/sharp-libvips-linux-arm64": "0.0.3"
+    "@img/sharp-libvips-linux-arm64": "1.0.0"
  },
  "files": [
    "lib"
--- a/npm/linux-s390x/package.json
+++ b/npm/linux-s390x/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@img/sharp-linux-s390x",
-  "version": "0.33.0-alpha.10",
+  "version": "0.33.0-rc.1",
  "description": "Prebuilt sharp for use with Linux (glibc) s390x",
  "author": "Lovell Fuller <npm@lovell.info>",
  "homepage": "https://sharp.pixelplumbing.com",
@@ -15,7 +15,7 @@
  },
  "preferUnplugged": true,
  "optionalDependencies": {
-    "@img/sharp-libvips-linux-s390x": "0.0.3"
+    "@img/sharp-libvips-linux-s390x": "1.0.0"
  },
  "files": [
    "lib"
--- a/npm/linux-x64/package.json
+++ b/npm/linux-x64/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@img/sharp-linux-x64",
-  "version": "0.33.0-alpha.10",
+  "version": "0.33.0-rc.1",
  "description": "Prebuilt sharp for use with Linux (glibc) x64",
  "author": "Lovell Fuller <npm@lovell.info>",
  "homepage": "https://sharp.pixelplumbing.com",
@@ -15,7 +15,7 @@
  },
  "preferUnplugged": true,
  "optionalDependencies": {
-    "@img/sharp-libvips-linux-x64": "0.0.3"
+    "@img/sharp-libvips-linux-x64": "1.0.0"
  },
  "files": [
    "lib"
--- a/npm/linuxmusl-arm64/package.json
+++ b/npm/linuxmusl-arm64/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@img/sharp-linuxmusl-arm64",
-  "version": "0.33.0-alpha.10",
+  "version": "0.33.0-rc.1",
  "description": "Prebuilt sharp for use with Linux (musl) 64-bit ARM",
  "author": "Lovell Fuller <npm@lovell.info>",
  "homepage": "https://sharp.pixelplumbing.com",
@@ -15,7 +15,7 @@
  },
  "preferUnplugged": true,
  "optionalDependencies": {
-    "@img/sharp-libvips-linuxmusl-arm64": "0.0.3"
+    "@img/sharp-libvips-linuxmusl-arm64": "1.0.0"
  },
  "files": [
    "lib"
--- a/npm/linuxmusl-x64/package.json
+++ b/npm/linuxmusl-x64/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@img/sharp-linuxmusl-x64",
-  "version": "0.33.0-alpha.10",
+  "version": "0.33.0-rc.1",
  "description": "Prebuilt sharp for use with Linux (musl) x64",
  "author": "Lovell Fuller <npm@lovell.info>",
  "homepage": "https://sharp.pixelplumbing.com",
@@ -15,7 +15,7 @@
  },
  "preferUnplugged": true,
  "optionalDependencies": {
-    "@img/sharp-libvips-linuxmusl-x64": "0.0.3"
+    "@img/sharp-libvips-linuxmusl-x64": "1.0.0"
  },
  "files": [
    "lib"
--- a/npm/package.json
+++ b/npm/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@img/sharp",
-  "version": "0.33.0-alpha.10",
+  "version": "0.33.0-rc.1",
  "private": "true",
  "workspaces": [
    "darwin-arm64",
@@ -11,6 +11,7 @@
    "linux-x64",
    "linuxmusl-arm64",
    "linuxmusl-x64",
+    "wasm32",
    "win32-ia32",
    "win32-x64"
  ]
--- a/npm/wasm32/package.json
+++ b/npm/wasm32/package.json
@@ -0,0 +1,42 @@
+{
+  "name": "@img/sharp-wasm32",
+  "version": "0.33.0-rc.1",
+  "description": "Prebuilt sharp for use with wasm32",
+  "author": "Lovell Fuller <npm@lovell.info>",
+  "homepage": "https://sharp.pixelplumbing.com",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/lovell/sharp.git",
+    "directory": "npm/wasm32"
+  },
+  "license": "Apache-2.0 AND LGPL-3.0-or-later AND MIT",
+  "funding": {
+    "url": "https://opencollective.com/libvips"
+  },
+  "preferUnplugged": true,
+  "files": [
+    "lib",
+    "versions.json"
+  ],
+  "publishConfig": {
+    "access": "public"
+  },
+  "type": "commonjs",
+  "exports": {
+    "./sharp.node": "./lib/sharp-wasm32.node.js",
+    "./package": "./package.json",
+    "./versions": "./versions.json"
+  },
+  "engines": {
+    "node": "^18.17.0 || ^20.3.0 || >=21.0.0",
+    "npm": ">=9.6.5",
+    "yarn": ">=3.2.0",
+    "pnpm": ">=7.1.0"
+  },
+  "dependencies": {
+    "@emnapi/runtime": "^0.44.0"
+  },
+  "cpu": [
+    "wasm32"
+  ]
+}
--- a/npm/win32-ia32/package.json
+++ b/npm/win32-ia32/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@img/sharp-win32-ia32",
-  "version": "0.33.0-alpha.10",
+  "version": "0.33.0-rc.1",
  "description": "Prebuilt sharp for use with Windows x86 (32-bit)",
  "author": "Lovell Fuller <npm@lovell.info>",
  "homepage": "https://sharp.pixelplumbing.com",
--- a/npm/win32-x64/package.json
+++ b/npm/win32-x64/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@img/sharp-win32-x64",
-  "version": "0.33.0-alpha.10",
+  "version": "0.33.0-rc.1",
  "description": "Prebuilt sharp for use with Windows x64",
  "author": "Lovell Fuller <npm@lovell.info>",
  "homepage": "https://sharp.pixelplumbing.com",
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
  "name": "sharp",
  "description": "High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, GIF, AVIF and TIFF images",
-  "version": "0.33.0-alpha.10",
+  "version": "0.33.0-rc.1",
  "author": "Lovell Fuller <npm@lovell.info>",
  "homepage": "https://github.com/lovell/sharp",
  "contributors": [
@@ -87,7 +87,8 @@
    "Brahim Ait elhaj <brahima@gmail.com>",
    "Mart Jansink <m.jansink@gmail.com>",
    "Lachlan Newman <lachnewman007@gmail.com>",
-    "Dennis Beatty <dennis@dcbeatty.com>"
+    "Dennis Beatty <dennis@dcbeatty.com>",
+    "Ingvar Stepanyan <me@rreverser.com>"
  ],
  "scripts": {
    "install": "node install/check",
@@ -140,32 +141,36 @@
    "semver": "^7.5.4"
  },
  "optionalDependencies": {
-    "@img/sharp-darwin-arm64": "0.33.0-alpha.10",
-    "@img/sharp-darwin-x64": "0.33.0-alpha.10",
-    "@img/sharp-libvips-darwin-arm64": "0.0.3",
-    "@img/sharp-libvips-darwin-x64": "0.0.3",
-    "@img/sharp-libvips-linux-arm": "0.0.3",
-    "@img/sharp-libvips-linux-arm64": "0.0.3",
-    "@img/sharp-libvips-linux-s390x": "0.0.3",
-    "@img/sharp-libvips-linux-x64": "0.0.3",
-    "@img/sharp-libvips-linuxmusl-arm64": "0.0.3",
-    "@img/sharp-libvips-linuxmusl-x64": "0.0.3",
-    "@img/sharp-linux-arm": "0.33.0-alpha.10",
-    "@img/sharp-linux-arm64": "0.33.0-alpha.10",
-    "@img/sharp-linux-s390x": "0.33.0-alpha.10",
-    "@img/sharp-linux-x64": "0.33.0-alpha.10",
-    "@img/sharp-linuxmusl-arm64": "0.33.0-alpha.10",
-    "@img/sharp-linuxmusl-x64": "0.33.0-alpha.10",
-    "@img/sharp-win32-ia32": "0.33.0-alpha.10",
-    "@img/sharp-win32-x64": "0.33.0-alpha.10"
+    "@img/sharp-darwin-arm64": "0.33.0-rc.1",
+    "@img/sharp-darwin-x64": "0.33.0-rc.1",
+    "@img/sharp-libvips-darwin-arm64": "1.0.0",
+    "@img/sharp-libvips-darwin-x64": "1.0.0",
+    "@img/sharp-libvips-linux-arm": "1.0.0",
+    "@img/sharp-libvips-linux-arm64": "1.0.0",
+    "@img/sharp-libvips-linux-s390x": "1.0.0",
+    "@img/sharp-libvips-linux-x64": "1.0.0",
+    "@img/sharp-libvips-linuxmusl-arm64": "1.0.0",
+    "@img/sharp-libvips-linuxmusl-x64": "1.0.0",
+    "@img/sharp-linux-arm": "0.33.0-rc.1",
+    "@img/sharp-linux-arm64": "0.33.0-rc.1",
+    "@img/sharp-linux-s390x": "0.33.0-rc.1",
+    "@img/sharp-linux-x64": "0.33.0-rc.1",
+    "@img/sharp-linuxmusl-arm64": "0.33.0-rc.1",
+    "@img/sharp-linuxmusl-x64": "0.33.0-rc.1",
+    "@img/sharp-wasm32": "0.33.0-rc.1",
+    "@img/sharp-win32-ia32": "0.33.0-rc.1",
+    "@img/sharp-win32-x64": "0.33.0-rc.1"
  },
  "devDependencies": {
-    "@img/sharp-libvips-dev": "0.0.3",
-    "@img/sharp-libvips-win32-ia32": "0.0.3",
-    "@img/sharp-libvips-win32-x64": "0.0.3",
+    "@emnapi/runtime": "^0.44.0",
+    "@img/sharp-libvips-dev": "1.0.0",
+    "@img/sharp-libvips-dev-wasm32": "1.0.0",
+    "@img/sharp-libvips-win32-ia32": "1.0.0",
+    "@img/sharp-libvips-win32-x64": "1.0.0",
    "@types/node": "*",
-    "async": "^3.2.4",
+    "async": "^3.2.5",
    "cc": "^3.0.1",
+    "emnapi": "^0.44.0",
    "exif-reader": "^2.0.0",
    "extract-zip": "^2.0.1",
    "icc": "^3.0.0",
@@ -203,6 +208,11 @@
      "build/include"
    ]
  },
+  "nyc": {
+    "include": [
+      "lib"
+    ]
+  },
  "tsd": {
    "directory": "test/types/"
  }
--- a/src/binding.gyp
+++ b/src/binding.gyp
@@ -155,7 +155,7 @@
              'OTHER_LDFLAGS': [
                # Ensure runtime linking is relative to sharp.node
                '-Wl,-rpath,\'@loader_path/../../sharp-libvips-<(platform_and_arch)/lib\'',
-                '-Wl,-rpath,\'@loader_path/../../../<(sharp_libvips_version)/sharp-libvips-<(platform_and_arch)/lib\'',
+                '-Wl,-rpath,\'@loader_path/../../../sharp-libvips-<(platform_and_arch)/<(sharp_libvips_version)/lib\'',
                '-Wl,-rpath,\'@loader_path/../../node_modules/@img/sharp-libvips-<(platform_and_arch)/lib\'',
                '-Wl,-rpath,\'@loader_path/../../../node_modules/@img/sharp-libvips-<(platform_and_arch)/lib\''
              ]
@@ -170,15 +170,35 @@
                '-l:libvips-cpp.so.42'
              ],
              'ldflags': [
-                # Ensure runtime linking is relative to sharp.node
                '-Wl,-s',
                '-Wl,--disable-new-dtags',
+                '-Wl,-z,nodelete',
                '-Wl,-rpath=\'$$ORIGIN/../../sharp-libvips-<(platform_and_arch)/lib\'',
-                '-Wl,-rpath=\'$$ORIGIN/../../../<(sharp_libvips_version)/sharp-libvips-<(platform_and_arch)/lib\'',
+                '-Wl,-rpath=\'$$ORIGIN/../../../sharp-libvips-<(platform_and_arch)/<(sharp_libvips_version)/lib\'',
                '-Wl,-rpath=\'$$ORIGIN/../../node_modules/@img/sharp-libvips-<(platform_and_arch)/lib\'',
                '-Wl,-rpath=\'$$ORIGIN/../../../node_modules/@img/sharp-libvips-<(platform_and_arch)/lib\''
              ]
            }
+          }],
+          ['OS == "emscripten"', {
+            'product_extension': 'node.js',
+            'link_settings': {
+              'ldflags': [
+                '-fexceptions',
+                '--pre-js=<!(node -p "require.resolve(\'./emscripten/pre.js\')")',
+                '-Oz',
+                '-sALLOW_MEMORY_GROWTH',
+                '-sENVIRONMENT=node',
+                '-sEXPORTED_FUNCTIONS=["_vips_shutdown", "_uv_library_shutdown"]',
+                '-sNODERAWFS',
+                '-sTEXTDECODER=0',
+                '-sWASM_ASYNC_COMPILATION=0',
+                '-sWASM_BIGINT'
+              ],
+              'libraries': [
+                '<!@(PKG_CONFIG_PATH="<!(node -p "require(\'@img/sharp-libvips-dev-wasm32/lib\')")/pkgconfig" pkg-config --static --libs vips-cpp)'
+              ],
+            }
          }]
        ]
      }]
@@ -203,11 +223,6 @@
    'configurations': {
      'Release': {
        'conditions': [
-          ['OS == "linux"', {
-            'cflags_cc': [
-              '-Wno-cast-function-type'
-            ]
-          }],
          ['target_arch == "arm"', {
            'cflags_cc': [
              '-Wno-psabi'
--- a/src/common.cc
+++ b/src/common.cc
@@ -531,7 +531,33 @@ namespace sharp {
    Does this image have an embedded profile?
  */
  bool HasProfile(VImage image) {
-    return (image.get_typeof(VIPS_META_ICC_NAME) != 0) ? TRUE : FALSE;
+    return image.get_typeof(VIPS_META_ICC_NAME) == VIPS_TYPE_BLOB;
+  }
+
+  /*
+    Get copy of embedded profile.
+  */
+  std::pair<char*, size_t> GetProfile(VImage image) {
+    std::pair<char*, size_t> icc(nullptr, 0);
+    if (HasProfile(image)) {
+      size_t length;
+      const void *data = image.get_blob(VIPS_META_ICC_NAME, &length);
+      icc.first = static_cast<char*>(g_malloc(length));
+      icc.second = length;
+      memcpy(icc.first, data, length);
+    }
+    return icc;
+  }
+
+  /*
+    Set embedded profile.
+  */
+  VImage SetProfile(VImage image, std::pair<char*, size_t> icc) {
+    if (icc.first != nullptr) {
+      image = image.copy();
+      image.set(VIPS_META_ICC_NAME, reinterpret_cast<VipsCallbackFn>(vips_area_free_cb), icc.first, icc.second);
+    }
+    return image;
  }

  /*
@@ -542,6 +568,27 @@ namespace sharp {
    return image.has_alpha();
  }

+  static void* RemoveExifCallback(VipsImage *image, char const *field, GValue *value, void *data) {
+    std::vector<std::string> *fieldNames = static_cast<std::vector<std::string> *>(data);
+    std::string fieldName(field);
+    if (fieldName.substr(0, 8) == ("exif-ifd")) {
+      fieldNames->push_back(fieldName);
+    }
+    return nullptr;
+  }
+
+  /*
+    Remove all EXIF-related image fields.
+  */
+  VImage RemoveExif(VImage image) {
+    std::vector<std::string> fieldNames;
+    vips_image_map(image.get_image(), static_cast<VipsImageMapFn>(RemoveExifCallback), &fieldNames);
+    for (const auto& f : fieldNames) {
+      image.remove(f.data());
+    }
+    return image;
+  }
+
  /*
    Get EXIF Orientation of image, if any.
  */
--- a/src/common.h
+++ b/src/common.h
@@ -222,12 +222,27 @@ namespace sharp {
  */
  bool HasProfile(VImage image);

+  /*
+    Get copy of embedded profile.
+  */
+  std::pair<char*, size_t> GetProfile(VImage image);
+
+  /*
+    Set embedded profile.
+  */
+  VImage SetProfile(VImage image, std::pair<char*, size_t> icc);
+
  /*
    Does this image have an alpha channel?
    Uses colour space interpretation with number of channels to guess this.
  */
  bool HasAlpha(VImage image);

+  /*
+    Remove all EXIF-related image fields.
+  */
+  VImage RemoveExif(VImage image);
+
  /*
    Get EXIF Orientation of image, if any.
  */
--- a/src/emscripten/common.gypi
+++ b/src/emscripten/common.gypi
@@ -0,0 +1,40 @@
+# Copyright 2013 Lovell Fuller and others.
+# SPDX-License-Identifier: Apache-2.0
+
+{
+  'variables': {
+    'OS': 'emscripten'
+  },
+  'target_defaults': {
+    'default_configuration': 'Release',
+    'type': 'executable',
+    'cflags': [
+      '-pthread',
+      '-sDEFAULT_TO_CXX=0'
+    ],
+    'cflags_cc': [
+      '-pthread'
+    ],
+    'ldflags': [
+      '--js-library=<!(node -p "require(\'emnapi\').js_library")',
+      '-sAUTO_JS_LIBRARIES=0',
+      '-sAUTO_NATIVE_LIBRARIES=0',
+      '-sNODEJS_CATCH_EXIT=0',
+      '-sNODEJS_CATCH_REJECTION=0'
+    ],
+    'defines': [
+      '__STDC_FORMAT_MACROS',
+      'BUILDING_NODE_EXTENSION',
+      'EMNAPI_WORKER_POOL_SIZE=1'
+    ],
+    'include_dirs': [
+      '<!(node -p "require(\'emnapi\').include")'
+    ],
+    'sources': [
+      '<!@(node -p "require(\'emnapi\').sources.map(x => JSON.stringify(path.relative(process.cwd(), x))).join(\' \')")'
+    ],
+    'configurations': {
+      'Release': {}
+    }
+  }
+}
--- a/src/emscripten/pre.js
+++ b/src/emscripten/pre.js
@@ -0,0 +1,19 @@
+// Copyright 2013 Lovell Fuller and others.
+// SPDX-License-Identifier: Apache-2.0
+
+/* global Module, ENV, _vips_shutdown, _uv_library_shutdown */
+
+Module.preRun = () => {
+  ENV.VIPS_CONCURRENCY = Number(process.env.VIPS_CONCURRENCY) || 1;
+};
+
+Module.onRuntimeInitialized = () => {
+  module.exports = Module.emnapiInit({
+    context: require('@emnapi/runtime').getDefaultContext()
+  });
+
+  process.once('exit', () => {
+    _vips_shutdown();
+    _uv_library_shutdown();
+  });
+};
--- a/src/operations.cc
+++ b/src/operations.cc
@@ -16,30 +16,44 @@ using vips::VError;

 namespace sharp {
  /*
-   * Tint an image using the specified chroma, preserving the original image luminance
+   * Tint an image using the provided RGB.
   */
-  VImage Tint(VImage image, double const a, double const b) {
-    // Get original colourspace
+  VImage Tint(VImage image, std::vector<double> const tint) {
+    std::vector<double> const tintLab = (VImage::black(1, 1) + tint)
+      .colourspace(VIPS_INTERPRETATION_LAB, VImage::option()->set("source_space", VIPS_INTERPRETATION_sRGB))
+      .getpoint(0, 0);
+    // LAB identity function
+    VImage identityLab = VImage::identity(VImage::option()->set("bands", 3))
+      .colourspace(VIPS_INTERPRETATION_LAB, VImage::option()->set("source_space", VIPS_INTERPRETATION_sRGB));
+    // Scale luminance range, 0.0 to 1.0
+    VImage l = identityLab[0] / 100;
+    // Weighting functions
+    VImage weightL = 1.0 - 4.0 * ((l - 0.5) * (l - 0.5));
+    VImage weightAB = (weightL * tintLab).extract_band(1, VImage::option()->set("n", 2));
+    identityLab = identityLab[0].bandjoin(weightAB);
+    // Convert lookup table to sRGB
+    VImage lut = identityLab.colourspace(VIPS_INTERPRETATION_sRGB,
+      VImage::option()->set("source_space", VIPS_INTERPRETATION_LAB));
+    // Original colourspace
    VipsInterpretation typeBeforeTint = image.interpretation();
    if (typeBeforeTint == VIPS_INTERPRETATION_RGB) {
      typeBeforeTint = VIPS_INTERPRETATION_sRGB;
    }
-    // Extract luminance
-    VImage luminance = image.colourspace(VIPS_INTERPRETATION_LAB)[0];
-    // Create the tinted version by combining the L from the original and the chroma from the tint
-    std::vector<double> chroma {a, b};
-    VImage tinted = luminance
-      .bandjoin(chroma)
-      .copy(VImage::option()->set("interpretation", VIPS_INTERPRETATION_LAB))
-      .colourspace(typeBeforeTint);
-    // Attach original alpha channel, if any
+    // Apply lookup table
    if (HasAlpha(image)) {
-      // Extract original alpha channel
      VImage alpha = image[image.bands() - 1];
-      // Join alpha channel to normalised image
-      tinted = tinted.bandjoin(alpha);
+      image = RemoveAlpha(image)
+        .colourspace(VIPS_INTERPRETATION_B_W)
+        .maplut(lut)
+        .colourspace(typeBeforeTint)
+        .bandjoin(alpha);
+    } else {
+      image = image
+        .colourspace(VIPS_INTERPRETATION_B_W)
+        .maplut(lut)
+        .colourspace(typeBeforeTint);
    }
-    return tinted;
+    return image;
  }

  /*
--- a/src/operations.h
+++ b/src/operations.h
@@ -15,9 +15,9 @@ using vips::VImage;
 namespace sharp {

  /*
-   * Tint an image using the specified chroma, preserving the original image luminance
+   * Tint an image using the provided RGB.
   */
-  VImage Tint(VImage image, double const a, double const b);
+  VImage Tint(VImage image, std::vector<double> const tint);

  /*
   * Stretch luminance to cover full dynamic range.
--- a/src/pipeline.cc
+++ b/src/pipeline.cc
@@ -315,6 +315,11 @@ class PipelineWorker : public Napi::AsyncWorker {
      }

      // Ensure we're using a device-independent colour space
+      std::pair<char*, size_t> inputProfile(nullptr, 0);
+      if ((baton->keepMetadata & VIPS_FOREIGN_KEEP_ICC) && baton->withIccProfile.empty()) {
+        // Cache input profile for use with output
+        inputProfile = sharp::GetProfile(image);
+      }
      char const *processingProfile = image.interpretation() == VIPS_INTERPRETATION_RGB16 ? "p3" : "srgb";
      if (
        sharp::HasProfile(image) &&
@@ -736,8 +741,8 @@ class PipelineWorker : public Napi::AsyncWorker {
      }

      // Tint the image
-      if (baton->tintA < 128.0 || baton->tintB < 128.0) {
-        image = sharp::Tint(image, baton->tintA, baton->tintB);
+      if (baton->tint[0] >= 0.0) {
+        image = sharp::Tint(image, baton->tint);
      }

      // Remove alpha channel, if any
@@ -758,7 +763,8 @@ class PipelineWorker : public Napi::AsyncWorker {
        // Convert colourspace, pass the current known interpretation so libvips doesn't have to guess
        image = image.colourspace(baton->colourspace, VImage::option()->set("source_space", image.interpretation()));
        // Transform colours from embedded profile to output profile
-        if (baton->withMetadata && sharp::HasProfile(image) && baton->withMetadataIcc.empty()) {
+        if ((baton->keepMetadata & VIPS_FOREIGN_KEEP_ICC) &&
+          baton->withIccProfile.empty() && sharp::HasProfile(image)) {
          image = image.icc_transform("srgb", VImage::option()
            ->set("embedded", TRUE)
            ->set("depth", sharp::Is16Bit(image.interpretation()) ? 16 : 8)
@@ -787,27 +793,30 @@ class PipelineWorker : public Napi::AsyncWorker {
      }

      // Apply output ICC profile
-      if (baton->withMetadata) {
-        image = image.icc_transform(
-          baton->withMetadataIcc.empty() ? "srgb" : const_cast<char*>(baton->withMetadataIcc.data()),
-          VImage::option()
-            ->set("input_profile", processingProfile)
-            ->set("embedded", TRUE)
-            ->set("depth", sharp::Is16Bit(image.interpretation()) ? 16 : 8)
-            ->set("intent", VIPS_INTENT_PERCEPTUAL));
+      if (!baton->withIccProfile.empty()) {
+        image = image.icc_transform(const_cast<char*>(baton->withIccProfile.data()), VImage::option()
+          ->set("input_profile", processingProfile)
+          ->set("embedded", TRUE)
+          ->set("depth", sharp::Is16Bit(image.interpretation()) ? 16 : 8)
+          ->set("intent", VIPS_INTENT_PERCEPTUAL));
+      } else if (baton->keepMetadata & VIPS_FOREIGN_KEEP_ICC) {
+        image = sharp::SetProfile(image, inputProfile);
      }
      // Override EXIF Orientation tag
-      if (baton->withMetadata && baton->withMetadataOrientation != -1) {
+      if (baton->withMetadataOrientation != -1) {
        image = sharp::SetExifOrientation(image, baton->withMetadataOrientation);
      }
      // Override pixel density
      if (baton->withMetadataDensity > 0) {
        image = sharp::SetDensity(image, baton->withMetadataDensity);
      }
-      // Metadata key/value pairs, e.g. EXIF
-      if (!baton->withMetadataStrs.empty()) {
+      // EXIF key/value pairs
+      if (baton->keepMetadata & VIPS_FOREIGN_KEEP_EXIF) {
        image = image.copy();
-        for (const auto& s : baton->withMetadataStrs) {
+        if (!baton->withExifMerge) {
+          image = sharp::RemoveExif(image);
+        }
+        for (const auto& s : baton->withExif) {
          image.set(s.first.data(), s.second.data());
        }
      }
@@ -828,7 +837,7 @@ class PipelineWorker : public Napi::AsyncWorker {
          // Write JPEG to buffer
          sharp::AssertImageTypeDimensions(image, sharp::ImageType::JPEG);
          VipsArea *area = reinterpret_cast<VipsArea*>(image.jpegsave_buffer(VImage::option()
-            ->set("strip", !baton->withMetadata)
+            ->set("keep", baton->keepMetadata)
            ->set("Q", baton->jpegQuality)
            ->set("interlace", baton->jpegProgressive)
            ->set("subsample_mode", baton->jpegChromaSubsampling == "4:4:4"
@@ -870,7 +879,7 @@ class PipelineWorker : public Napi::AsyncWorker {
          // Write PNG to buffer
          sharp::AssertImageTypeDimensions(image, sharp::ImageType::PNG);
          VipsArea *area = reinterpret_cast<VipsArea*>(image.pngsave_buffer(VImage::option()
-            ->set("strip", !baton->withMetadata)
+            ->set("keep", baton->keepMetadata)
            ->set("interlace", baton->pngProgressive)
            ->set("compression", baton->pngCompressionLevel)
            ->set("filter", baton->pngAdaptiveFiltering ? VIPS_FOREIGN_PNG_FILTER_ALL : VIPS_FOREIGN_PNG_FILTER_NONE)
@@ -889,7 +898,7 @@ class PipelineWorker : public Napi::AsyncWorker {
          // Write WEBP to buffer
          sharp::AssertImageTypeDimensions(image, sharp::ImageType::WEBP);
          VipsArea *area = reinterpret_cast<VipsArea*>(image.webpsave_buffer(VImage::option()
-            ->set("strip", !baton->withMetadata)
+            ->set("keep", baton->keepMetadata)
            ->set("Q", baton->webpQuality)
            ->set("lossless", baton->webpLossless)
            ->set("near_lossless", baton->webpNearLossless)
@@ -909,7 +918,7 @@ class PipelineWorker : public Napi::AsyncWorker {
          // Write GIF to buffer
          sharp::AssertImageTypeDimensions(image, sharp::ImageType::GIF);
          VipsArea *area = reinterpret_cast<VipsArea*>(image.gifsave_buffer(VImage::option()
-            ->set("strip", !baton->withMetadata)
+            ->set("keep", baton->keepMetadata)
            ->set("bitdepth", baton->gifBitdepth)
            ->set("effort", baton->gifEffort)
            ->set("reuse", baton->gifReuse)
@@ -934,7 +943,7 @@ class PipelineWorker : public Napi::AsyncWorker {
            image = image.cast(VIPS_FORMAT_FLOAT);
          }
          VipsArea *area = reinterpret_cast<VipsArea*>(image.tiffsave_buffer(VImage::option()
-            ->set("strip", !baton->withMetadata)
+            ->set("keep", baton->keepMetadata)
            ->set("Q", baton->tiffQuality)
            ->set("bitdepth", baton->tiffBitdepth)
            ->set("compression", baton->tiffCompression)
@@ -958,7 +967,7 @@ class PipelineWorker : public Napi::AsyncWorker {
          sharp::AssertImageTypeDimensions(image, sharp::ImageType::HEIF);
          image = sharp::RemoveAnimationProperties(image).cast(VIPS_FORMAT_UCHAR);
          VipsArea *area = reinterpret_cast<VipsArea*>(image.heifsave_buffer(VImage::option()
-            ->set("strip", !baton->withMetadata)
+            ->set("keep", baton->keepMetadata)
            ->set("Q", baton->heifQuality)
            ->set("compression", baton->heifCompression)
            ->set("effort", baton->heifEffort)
@@ -990,7 +999,7 @@ class PipelineWorker : public Napi::AsyncWorker {
          // Write JXL to buffer
          image = sharp::RemoveAnimationProperties(image);
          VipsArea *area = reinterpret_cast<VipsArea*>(image.jxlsave_buffer(VImage::option()
-            ->set("strip", !baton->withMetadata)
+            ->set("keep", baton->keepMetadata)
            ->set("distance", baton->jxlDistance)
            ->set("tier", baton->jxlDecodingTier)
            ->set("effort", baton->jxlEffort)
@@ -1051,7 +1060,7 @@ class PipelineWorker : public Napi::AsyncWorker {
          // Write JPEG to file
          sharp::AssertImageTypeDimensions(image, sharp::ImageType::JPEG);
          image.jpegsave(const_cast<char*>(baton->fileOut.data()), VImage::option()
-            ->set("strip", !baton->withMetadata)
+            ->set("keep", baton->keepMetadata)
            ->set("Q", baton->jpegQuality)
            ->set("interlace", baton->jpegProgressive)
            ->set("subsample_mode", baton->jpegChromaSubsampling == "4:4:4"
@@ -1081,7 +1090,7 @@ class PipelineWorker : public Napi::AsyncWorker {
          // Write PNG to file
          sharp::AssertImageTypeDimensions(image, sharp::ImageType::PNG);
          image.pngsave(const_cast<char*>(baton->fileOut.data()), VImage::option()
-            ->set("strip", !baton->withMetadata)
+            ->set("keep", baton->keepMetadata)
            ->set("interlace", baton->pngProgressive)
            ->set("compression", baton->pngCompressionLevel)
            ->set("filter", baton->pngAdaptiveFiltering ? VIPS_FOREIGN_PNG_FILTER_ALL : VIPS_FOREIGN_PNG_FILTER_NONE)
@@ -1096,7 +1105,7 @@ class PipelineWorker : public Napi::AsyncWorker {
          // Write WEBP to file
          sharp::AssertImageTypeDimensions(image, sharp::ImageType::WEBP);
          image.webpsave(const_cast<char*>(baton->fileOut.data()), VImage::option()
-            ->set("strip", !baton->withMetadata)
+            ->set("keep", baton->keepMetadata)
            ->set("Q", baton->webpQuality)
            ->set("lossless", baton->webpLossless)
            ->set("near_lossless", baton->webpNearLossless)
@@ -1112,7 +1121,7 @@ class PipelineWorker : public Napi::AsyncWorker {
          // Write GIF to file
          sharp::AssertImageTypeDimensions(image, sharp::ImageType::GIF);
          image.gifsave(const_cast<char*>(baton->fileOut.data()), VImage::option()
-            ->set("strip", !baton->withMetadata)
+            ->set("keep", baton->keepMetadata)
            ->set("bitdepth", baton->gifBitdepth)
            ->set("effort", baton->gifEffort)
            ->set("reuse", baton->gifReuse)
@@ -1131,7 +1140,7 @@ class PipelineWorker : public Napi::AsyncWorker {
            image = image.cast(VIPS_FORMAT_FLOAT);
          }
          image.tiffsave(const_cast<char*>(baton->fileOut.data()), VImage::option()
-            ->set("strip", !baton->withMetadata)
+            ->set("keep", baton->keepMetadata)
            ->set("Q", baton->tiffQuality)
            ->set("bitdepth", baton->tiffBitdepth)
            ->set("compression", baton->tiffCompression)
@@ -1151,7 +1160,7 @@ class PipelineWorker : public Napi::AsyncWorker {
          sharp::AssertImageTypeDimensions(image, sharp::ImageType::HEIF);
          image = sharp::RemoveAnimationProperties(image).cast(VIPS_FORMAT_UCHAR);
          image.heifsave(const_cast<char*>(baton->fileOut.data()), VImage::option()
-            ->set("strip", !baton->withMetadata)
+            ->set("keep", baton->keepMetadata)
            ->set("Q", baton->heifQuality)
            ->set("compression", baton->heifCompression)
            ->set("effort", baton->heifEffort)
@@ -1165,7 +1174,7 @@ class PipelineWorker : public Napi::AsyncWorker {
          // Write JXL to file
          image = sharp::RemoveAnimationProperties(image);
          image.jxlsave(const_cast<char*>(baton->fileOut.data()), VImage::option()
-            ->set("strip", !baton->withMetadata)
+            ->set("keep", baton->keepMetadata)
            ->set("distance", baton->jxlDistance)
            ->set("tier", baton->jxlDecodingTier)
            ->set("effort", baton->jxlEffort)
@@ -1187,7 +1196,7 @@ class PipelineWorker : public Napi::AsyncWorker {
          (willMatchInput && inputImageType == sharp::ImageType::VIPS)) {
          // Write V to file
          image.vipssave(const_cast<char*>(baton->fileOut.data()), VImage::option()
-            ->set("strip", !baton->withMetadata));
+            ->set("keep", baton->keepMetadata));
          baton->formatOut = "v";
        } else {
          // Unsupported output format
@@ -1401,7 +1410,7 @@ class PipelineWorker : public Napi::AsyncWorker {
      suffix = AssembleSuffixString(extname, options);
    }
    vips::VOption *options = VImage::option()
-      ->set("strip", !baton->withMetadata)
+      ->set("keep", baton->keepMetadata)
      ->set("tile_size", baton->tileSize)
      ->set("overlap", baton->tileOverlap)
      ->set("container", baton->tileContainer)
@@ -1527,8 +1536,7 @@ Napi::Value pipeline(const Napi::CallbackInfo& info) {
  baton->normalise = sharp::AttrAsBool(options, "normalise");
  baton->normaliseLower = sharp::AttrAsUint32(options, "normaliseLower");
  baton->normaliseUpper = sharp::AttrAsUint32(options, "normaliseUpper");
-  baton->tintA = sharp::AttrAsDouble(options, "tintA");
-  baton->tintB = sharp::AttrAsDouble(options, "tintB");
+  baton->tint = sharp::AttrAsVectorOfDouble(options, "tint");
  baton->claheWidth = sharp::AttrAsUint32(options, "claheWidth");
  baton->claheHeight = sharp::AttrAsUint32(options, "claheHeight");
  baton->claheMaxSlope = sharp::AttrAsUint32(options, "claheMaxSlope");
@@ -1594,18 +1602,19 @@ Napi::Value pipeline(const Napi::CallbackInfo& info) {
  // Output
  baton->formatOut = sharp::AttrAsStr(options, "formatOut");
  baton->fileOut = sharp::AttrAsStr(options, "fileOut");
-  baton->withMetadata = sharp::AttrAsBool(options, "withMetadata");
+  baton->keepMetadata = sharp::AttrAsUint32(options, "keepMetadata");
  baton->withMetadataOrientation = sharp::AttrAsUint32(options, "withMetadataOrientation");
  baton->withMetadataDensity = sharp::AttrAsDouble(options, "withMetadataDensity");
-  baton->withMetadataIcc = sharp::AttrAsStr(options, "withMetadataIcc");
-  Napi::Object mdStrs = options.Get("withMetadataStrs").As<Napi::Object>();
-  Napi::Array mdStrKeys = mdStrs.GetPropertyNames();
-  for (unsigned int i = 0; i < mdStrKeys.Length(); i++) {
-    std::string k = sharp::AttrAsStr(mdStrKeys, i);
-    if (mdStrs.HasOwnProperty(k)) {
-      baton->withMetadataStrs.insert(std::make_pair(k, sharp::AttrAsStr(mdStrs, k)));
+  baton->withIccProfile = sharp::AttrAsStr(options, "withIccProfile");
+  Napi::Object withExif = options.Get("withExif").As<Napi::Object>();
+  Napi::Array withExifKeys = withExif.GetPropertyNames();
+  for (unsigned int i = 0; i < withExifKeys.Length(); i++) {
+    std::string k = sharp::AttrAsStr(withExifKeys, i);
+    if (withExif.HasOwnProperty(k)) {
+      baton->withExif.insert(std::make_pair(k, sharp::AttrAsStr(withExif, k)));
    }
  }
+  baton->withExifMerge = sharp::AttrAsBool(options, "withExifMerge");
  baton->timeoutSeconds = sharp::AttrAsUint32(options, "timeoutSeconds");
  // Format-specific
  baton->jpegQuality = sharp::AttrAsUint32(options, "jpegQuality");
--- a/src/pipeline.h
+++ b/src/pipeline.h
@@ -69,8 +69,7 @@ struct PipelineBaton {
  bool premultiplied;
  bool tileCentre;
  bool fastShrinkOnLoad;
-  double tintA;
-  double tintB;
+  std::vector<double> tint;
  bool flatten;
  std::vector<double> flattenBackground;
  bool unflatten;
@@ -188,11 +187,12 @@ struct PipelineBaton {
  bool jxlLossless;
  VipsBandFormat rawDepth;
  std::string err;
-  bool withMetadata;
+  int keepMetadata;
  int withMetadataOrientation;
  double withMetadataDensity;
-  std::string withMetadataIcc;
-  std::unordered_map<std::string, std::string> withMetadataStrs;
+  std::string withIccProfile;
+  std::unordered_map<std::string, std::string> withExif;
+  bool withExifMerge;
  int timeoutSeconds;
  std::unique_ptr<double[]> convKernel;
  int convKernelWidth;
@@ -239,8 +239,7 @@ struct PipelineBaton {
    attentionX(0),
    attentionY(0),
    premultiplied(false),
-    tintA(128.0),
-    tintB(128.0),
+    tint{ -1.0, 0.0, 0.0, 0.0 },
    flatten(false),
    flattenBackground{ 0.0, 0.0, 0.0 },
    unflatten(false),
@@ -355,9 +354,10 @@ struct PipelineBaton {
    jxlEffort(7),
    jxlLossless(false),
    rawDepth(VIPS_FORMAT_UCHAR),
-    withMetadata(false),
+    keepMetadata(0),
    withMetadataOrientation(-1),
    withMetadataDensity(0.0),
+    withExifMerge(true),
    timeoutSeconds(0),
    convKernelWidth(0),
    convKernelHeight(0),
--- a/src/utilities.cc
+++ b/src/utilities.cc
@@ -102,6 +102,11 @@ Napi::Value libvipsVersion(const Napi::CallbackInfo& info) {
  version.Set("isGlobal", Napi::Boolean::New(env, true));
 #else
  version.Set("isGlobal", Napi::Boolean::New(env, false));
+#endif
+#ifdef __EMSCRIPTEN__
+  version.Set("isWasm", Napi::Boolean::New(env, true));
+#else
+  version.Set("isWasm", Napi::Boolean::New(env, false));
 #endif
  return version;
 }
--- a/test/fixtures/expected/tint-alpha.png
+++ b/test/fixtures/expected/tint-alpha.png
--- a/test/fixtures/expected/tint-blue.jpg
+++ b/test/fixtures/expected/tint-blue.jpg
--- a/test/fixtures/expected/tint-cmyk.jpg
+++ b/test/fixtures/expected/tint-cmyk.jpg
--- a/test/fixtures/expected/tint-green.jpg
+++ b/test/fixtures/expected/tint-green.jpg
--- a/test/fixtures/expected/tint-red.jpg
+++ b/test/fixtures/expected/tint-red.jpg
--- a/test/fixtures/expected/tint-sepia.jpg
+++ b/test/fixtures/expected/tint-sepia.jpg
--- a/test/types/sharp.test-d.ts
+++ b/test/types/sharp.test-d.ts
@@ -659,6 +659,18 @@ sharp('input.tiff').webp({ preset: 'drawing' }).toFile('out.webp');
 sharp('input.tiff').webp({ preset: 'text' }).toFile('out.webp');
 sharp('input.tiff').webp({ preset: 'default' }).toFile('out.webp');

-// Allow a boolean or an object for metadata options.
-// https://github.com/lovell/sharp/issues/3822
-sharp(input).withMetadata().withMetadata({}).withMetadata(false);
+sharp(input)
+  .keepExif()
+  .withExif({
+    IFD0: {
+      k1: 'v1'
+    }
+  })
+  .withExifMerge({
+    IFD1: {
+      k2: 'v2'
+    }
+  })
+  .keepIccProfile()
+  .withIccProfile('filename')
+  .withIccProfile('filename', { attach: false });
--- a/test/unit/libvips.js
+++ b/test/unit/libvips.js
@@ -69,17 +69,25 @@ describe('libvips binaries', function () {
  });

  describe('Build time platform detection', () => {
-    it('Can override platform with npm_config_platform and npm_config_libc', () => {
+    it('Can override platform with npm_config_platform and npm_config_libc', function () {
      process.env.npm_config_platform = 'testplatform';
      process.env.npm_config_libc = 'testlibc';
-      const [platform] = libvips.buildPlatformArch().split('-');
+      const platformArch = libvips.buildPlatformArch();
+      if (platformArch === 'wasm32') {
+        return this.skip();
+      }
+      const [platform] = platformArch.split('-');
      assert.strictEqual(platform, 'testplatformtestlibc');
      delete process.env.npm_config_platform;
      delete process.env.npm_config_libc;
    });
-    it('Can override arch with npm_config_arch', () => {
+    it('Can override arch with npm_config_arch', function () {
      process.env.npm_config_arch = 'test';
-      const [, arch] = libvips.buildPlatformArch().split('-');
+      const platformArch = libvips.buildPlatformArch();
+      if (platformArch === 'wasm32') {
+        return this.skip();
+      }
+      const [, arch] = platformArch.split('-');
      assert.strictEqual(arch, 'test');
      delete process.env.npm_config_arch;
    });
--- a/test/unit/metadata.js
+++ b/test/unit/metadata.js
@@ -11,6 +11,8 @@ const icc = require('icc');
 const sharp = require('../../');
 const fixtures = require('../fixtures');

+const create = { width: 1, height: 1, channels: 3, background: 'red' };
+
 describe('Image metadata', function () {
  it('JPEG', function (done) {
    sharp(fixtures.inputJpg).metadata(function (err, metadata) {
@@ -552,11 +554,55 @@ describe('Image metadata', function () {
      });
  });

+  it('keep existing ICC profile', async () => {
+    const data = await sharp(fixtures.inputJpgWithExif)
+      .keepIccProfile()
+      .toBuffer();
+
+    const metadata = await sharp(data).metadata();
+    const { description } = icc.parse(metadata.icc);
+    assert.strictEqual(description, 'Generic RGB Profile');
+  });
+
+  it('keep existing ICC profile, ignore colourspace conversion', async () => {
+    const data = await sharp(fixtures.inputJpgWithExif)
+      .keepIccProfile()
+      .toColourspace('cmyk')
+      .toBuffer();
+
+    const metadata = await sharp(data).metadata();
+    assert.strictEqual(metadata.channels, 3);
+    const { description } = icc.parse(metadata.icc);
+    assert.strictEqual(description, 'Generic RGB Profile');
+  });
+
+  it('transform to ICC profile and attach', async () => {
+    const data = await sharp({ create })
+      .png()
+      .withIccProfile('p3', { attach: true })
+      .toBuffer();
+
+    const metadata = await sharp(data).metadata();
+    const { description } = icc.parse(metadata.icc);
+    assert.strictEqual(description, 'sP3C');
+  });
+
+  it('transform to ICC profile but do not attach', async () => {
+    const data = await sharp({ create })
+      .png()
+      .withIccProfile('p3', { attach: false })
+      .toBuffer();
+
+    const metadata = await sharp(data).metadata();
+    assert.strictEqual(3, metadata.channels);
+    assert.strictEqual(undefined, metadata.icc);
+  });
+
  it('Apply CMYK output ICC profile', function (done) {
    const output = fixtures.path('output.icc-cmyk.jpg');
    sharp(fixtures.inputJpg)
      .resize(64)
-      .withMetadata({ icc: 'cmyk' })
+      .withIccProfile('cmyk')
      .toFile(output, function (err) {
        if (err) throw err;
        sharp(output).metadata(function (err, metadata) {
@@ -581,7 +627,7 @@ describe('Image metadata', function () {
    const output = fixtures.path('output.hilutite.jpg');
    sharp(fixtures.inputJpg)
      .resize(64)
-      .withMetadata({ icc: fixtures.path('hilutite.icm') })
+      .withIccProfile(fixtures.path('hilutite.icm'))
      .toFile(output, function (err, info) {
        if (err) throw err;
        fixtures.assertMaxColourDistance(output, fixtures.expected('hilutite.jpg'), 9);
@@ -620,7 +666,6 @@ describe('Image metadata', function () {
  it('Remove EXIF metadata after a resize', function (done) {
    sharp(fixtures.inputJpgWithExif)
      .resize(320, 240)
-      .withMetadata(false)
      .toBuffer(function (err, buffer) {
        if (err) throw err;
        sharp(buffer).metadata(function (err, metadata) {
@@ -651,14 +696,7 @@ describe('Image metadata', function () {
  });

  it('Add EXIF metadata to JPEG', async () => {
-    const data = await sharp({
-      create: {
-        width: 8,
-        height: 8,
-        channels: 3,
-        background: 'red'
-      }
-    })
+    const data = await sharp({ create })
      .jpeg()
      .withMetadata({
        exif: {
@@ -675,14 +713,7 @@ describe('Image metadata', function () {
  });

  it('Set density of JPEG', async () => {
-    const data = await sharp({
-      create: {
-        width: 8,
-        height: 8,
-        channels: 3,
-        background: 'red'
-      }
-    })
+    const data = await sharp({ create })
      .withMetadata({
        density: 300
      })
@@ -694,14 +725,7 @@ describe('Image metadata', function () {
  });

  it('Set density of PNG', async () => {
-    const data = await sharp({
-      create: {
-        width: 8,
-        height: 8,
-        channels: 3,
-        background: 'red'
-      }
-    })
+    const data = await sharp({ create })
      .withMetadata({
        density: 96
      })
@@ -809,11 +833,7 @@ describe('Image metadata', function () {
  });

  it('withMetadata adds default sRGB profile to RGB16', async () => {
-    const data = await sharp({
-      create: {
-        width: 8, height: 8, channels: 4, background: 'orange'
-      }
-    })
+    const data = await sharp({ create })
      .toColorspace('rgb16')
      .png()
      .withMetadata()
@@ -827,11 +847,7 @@ describe('Image metadata', function () {
  });

  it('withMetadata adds P3 profile to 16-bit PNG', async () => {
-    const data = await sharp({
-      create: {
-        width: 8, height: 8, channels: 4, background: 'orange'
-      }
-    })
+    const data = await sharp({ create })
      .toColorspace('rgb16')
      .png()
      .withMetadata({ icc: 'p3' })
@@ -871,7 +887,89 @@ describe('Image metadata', function () {
      });
  });

-  describe('Invalid withMetadata parameters', function () {
+  it('keepExif maintains all EXIF metadata', async () => {
+    const data1 = await sharp({ create })
+      .withExif({
+        IFD0: {
+          Copyright: 'Test 1',
+          Software: 'sharp'
+        }
+      })
+      .jpeg()
+      .toBuffer();
+
+    const data2 = await sharp(data1)
+      .keepExif()
+      .toBuffer();
+
+    const md2 = await sharp(data2).metadata();
+    const exif2 = exifReader(md2.exif);
+    assert.strictEqual(exif2.Image.Copyright, 'Test 1');
+    assert.strictEqual(exif2.Image.Software, 'sharp');
+  });
+
+  it('withExif replaces all EXIF metadata', async () => {
+    const data1 = await sharp({ create })
+      .withExif({
+        IFD0: {
+          Copyright: 'Test 1',
+          Software: 'sharp'
+        }
+      })
+      .jpeg()
+      .toBuffer();
+
+    const md1 = await sharp(data1).metadata();
+    const exif1 = exifReader(md1.exif);
+    assert.strictEqual(exif1.Image.Copyright, 'Test 1');
+    assert.strictEqual(exif1.Image.Software, 'sharp');
+
+    const data2 = await sharp(data1)
+      .withExif({
+        IFD0: {
+          Copyright: 'Test 2'
+        }
+      })
+      .toBuffer();
+
+    const md2 = await sharp(data2).metadata();
+    const exif2 = exifReader(md2.exif);
+    assert.strictEqual(exif2.Image.Copyright, 'Test 2');
+    assert.strictEqual(exif2.Image.Software, undefined);
+  });
+
+  it('withExifMerge merges all EXIF metadata', async () => {
+    const data1 = await sharp({ create })
+      .withExif({
+        IFD0: {
+          Copyright: 'Test 1'
+        }
+      })
+      .jpeg()
+      .toBuffer();
+
+    const md1 = await sharp(data1).metadata();
+    const exif1 = exifReader(md1.exif);
+    assert.strictEqual(exif1.Image.Copyright, 'Test 1');
+    assert.strictEqual(exif1.Image.Software, undefined);
+
+    const data2 = await sharp(data1)
+      .withExifMerge({
+        IFD0: {
+          Copyright: 'Test 2',
+          Software: 'sharp'
+
+        }
+      })
+      .toBuffer();
+
+    const md2 = await sharp(data2).metadata();
+    const exif2 = exifReader(md2.exif);
+    assert.strictEqual(exif2.Image.Copyright, 'Test 2');
+    assert.strictEqual(exif2.Image.Software, 'sharp');
+  });
+
+  describe('Invalid parameters', function () {
    it('String orientation', function () {
      assert.throws(function () {
        sharp().withMetadata({ orientation: 'zoinks' });
@@ -922,5 +1020,22 @@ describe('Image metadata', function () {
        sharp().withMetadata({ exif: { ifd0: { fail: false } } });
      });
    });
+    it('withIccProfile invalid profile', () => {
+      assert.throws(
+        () => sharp().withIccProfile(false),
+        /Expected string for icc but received false of type boolean/
+      );
+    });
+    it('withIccProfile missing attach', () => {
+      assert.doesNotThrow(
+        () => sharp().withIccProfile('test', {})
+      );
+    });
+    it('withIccProfile invalid attach', () => {
+      assert.throws(
+        () => sharp().withIccProfile('test', { attach: 1 }),
+        /Expected boolean for attach but received 1 of type number/
+      );
+    });
  });
 });
--- a/test/unit/text.js
+++ b/test/unit/text.js
@@ -58,9 +58,9 @@ describe('Text to image', function () {
      if (err) throw err;
      assert.strictEqual('png', info.format);
      assert.strictEqual(3, info.channels);
-      assert.ok(inRange(info.width, 450, 550), `Actual width ${info.width}`);
-      assert.ok(inRange(info.height, 300, 450), `Actual height ${info.height}`);
-      assert.ok(inRange(info.textAutofitDpi, 900, 1200), `Actual textAutofitDpi ${info.textAutofitDpi}`);
+      assert.ok(inRange(info.width, 400, 600), `Actual width ${info.width}`);
+      assert.ok(inRange(info.height, 300, 500), `Actual height ${info.height}`);
+      assert.ok(inRange(info.textAutofitDpi, 900, 1300), `Actual textAutofitDpi ${info.textAutofitDpi}`);
      done();
    });
  });
--- a/test/unit/tint.js
+++ b/test/unit/tint.js
@@ -8,16 +8,19 @@ const assert = require('assert');
 const sharp = require('../../');
 const fixtures = require('../fixtures');

+// Allow for small rounding differences between platforms
+const maxDistance = 6;
+
 describe('Tint', function () {
  it('tints rgb image red', function (done) {
    const output = fixtures.path('output.tint-red.jpg');
    sharp(fixtures.inputJpg)
-      .resize(320, 240, { fastShrinkOnLoad: false })
+      .resize(320, 240)
      .tint('#FF0000')
      .toFile(output, function (err, info) {
        if (err) throw err;
        assert.strictEqual(true, info.size > 0);
-        fixtures.assertMaxColourDistance(output, fixtures.expected('tint-red.jpg'), 18);
+        fixtures.assertMaxColourDistance(output, fixtures.expected('tint-red.jpg'), maxDistance);
        done();
      });
  });
@@ -25,12 +28,12 @@ describe('Tint', function () {
  it('tints rgb image green', function (done) {
    const output = fixtures.path('output.tint-green.jpg');
    sharp(fixtures.inputJpg)
-      .resize(320, 240, { fastShrinkOnLoad: false })
+      .resize(320, 240)
      .tint('#00FF00')
      .toFile(output, function (err, info) {
        if (err) throw err;
        assert.strictEqual(true, info.size > 0);
-        fixtures.assertMaxColourDistance(output, fixtures.expected('tint-green.jpg'), 27);
+        fixtures.assertMaxColourDistance(output, fixtures.expected('tint-green.jpg'), maxDistance);
        done();
      });
  });
@@ -38,12 +41,12 @@ describe('Tint', function () {
  it('tints rgb image blue', function (done) {
    const output = fixtures.path('output.tint-blue.jpg');
    sharp(fixtures.inputJpg)
-      .resize(320, 240, { fastShrinkOnLoad: false })
+      .resize(320, 240)
      .tint('#0000FF')
      .toFile(output, function (err, info) {
        if (err) throw err;
        assert.strictEqual(true, info.size > 0);
-        fixtures.assertMaxColourDistance(output, fixtures.expected('tint-blue.jpg'), 14);
+        fixtures.assertMaxColourDistance(output, fixtures.expected('tint-blue.jpg'), maxDistance);
        done();
      });
  });
@@ -51,13 +54,13 @@ describe('Tint', function () {
  it('tints rgb image with sepia tone', function (done) {
    const output = fixtures.path('output.tint-sepia-hex.jpg');
    sharp(fixtures.inputJpg)
-      .resize(320, 240, { fastShrinkOnLoad: false })
+      .resize(320, 240)
      .tint('#704214')
      .toFile(output, function (err, info) {
        if (err) throw err;
        assert.strictEqual(320, info.width);
        assert.strictEqual(240, info.height);
-        fixtures.assertMaxColourDistance(output, fixtures.expected('tint-sepia.jpg'), 10);
+        fixtures.assertMaxColourDistance(output, fixtures.expected('tint-sepia.jpg'), maxDistance);
        done();
      });
  });
@@ -65,13 +68,13 @@ describe('Tint', function () {
  it('tints rgb image with sepia tone with rgb colour', function (done) {
    const output = fixtures.path('output.tint-sepia-rgb.jpg');
    sharp(fixtures.inputJpg)
-      .resize(320, 240, { fastShrinkOnLoad: false })
+      .resize(320, 240)
      .tint([112, 66, 20])
      .toFile(output, function (err, info) {
        if (err) throw err;
        assert.strictEqual(320, info.width);
        assert.strictEqual(240, info.height);
-        fixtures.assertMaxColourDistance(output, fixtures.expected('tint-sepia.jpg'), 10);
+        fixtures.assertMaxColourDistance(output, fixtures.expected('tint-sepia.jpg'), maxDistance);
        done();
      });
  });
@@ -79,13 +82,13 @@ describe('Tint', function () {
  it('tints rgb image with alpha channel', function (done) {
    const output = fixtures.path('output.tint-alpha.png');
    sharp(fixtures.inputPngRGBWithAlpha)
-      .resize(320, 240, { fastShrinkOnLoad: false })
+      .resize(320, 240)
      .tint('#704214')
      .toFile(output, function (err, info) {
        if (err) throw err;
        assert.strictEqual(320, info.width);
        assert.strictEqual(240, info.height);
-        fixtures.assertMaxColourDistance(output, fixtures.expected('tint-alpha.png'), 10);
+        fixtures.assertMaxColourDistance(output, fixtures.expected('tint-alpha.png'), maxDistance);
        done();
      });
  });
@@ -93,12 +96,12 @@ describe('Tint', function () {
  it('tints cmyk image red', function (done) {
    const output = fixtures.path('output.tint-cmyk.jpg');
    sharp(fixtures.inputJpgWithCmykProfile)
-      .resize(320, 240, { fastShrinkOnLoad: false })
+      .resize(320, 240)
      .tint('#FF0000')
      .toFile(output, function (err, info) {
        if (err) throw err;
        assert.strictEqual(true, info.size > 0);
-        fixtures.assertMaxColourDistance(output, fixtures.expected('tint-cmyk.jpg'), 15);
+        fixtures.assertMaxColourDistance(output, fixtures.expected('tint-cmyk.jpg'), maxDistance);
        done();
      });
  });
Author	SHA1	Message	Date
Lovell Fuller	ef32dccb83	Prerelease v0.33.0-rc.1	2023-11-22 10:16:48 +00:00
Lovell Fuller	e78200cc84	Increase control over output metadata (#3856 ) Add withX and keepX functions to take advantage of libvips 8.15.0 new 'keep' metadata feature.	2023-11-22 09:03:57 +00:00
Lovell Fuller	3f7313d031	Improve tint luminance with weighting function (#3859 ) Co-authored-by: John Cupitt <jcupitt@gmail.com>	2023-11-19 13:19:34 +00:00
Lovell Fuller	139e4b9f65	Show cast-function-type compiler warnings	2023-11-16 11:18:58 +00:00
Lovell Fuller	9680f00ddd	CI: Ensure Wasm packaging test uses Wasm package	2023-11-15 19:28:18 +00:00
Lovell Fuller	0b0ebfe6f8	Bump dep: emnapi	2023-11-13 09:11:58 +00:00
Lovell Fuller	5aadb8294c	Upgrade to libvips v8.15.0	2023-11-12 17:03:38 +00:00
Lovell Fuller	ace1681886	Packaging: use correct package when pop from release	2023-11-10 17:26:21 +00:00
Pooya Parsa	75ef61a958	Correctly check for when sharp is unavailable (#3848 )	2023-11-10 15:30:01 +00:00
Lovell Fuller	2dba5b5451	Prerelease v0.33.0-alpha.11	2023-11-09 15:39:10 +00:00
Lovell Fuller	a8f68ba7f0	Add infrastructure to build and publish as wasm32 (#3840 ) Co-authored-by: Ingvar Stepanyan <me@rreverser.com>	2023-11-09 14:46:07 +00:00
Lovell Fuller	475bf16b09	Tests: increase flaky text test range even further	2023-11-08 14:51:31 +00:00
Lovell Fuller	67f49a8dcd	Tests: increase flaky text test range further	2023-11-08 14:12:03 +00:00
Lovell Fuller	074004392c	Simplify logic to determine installation help	2023-11-06 16:49:53 +00:00
Lovell Fuller	8c5a493f68	Correct Deno package cache rpath from `8d1747a`	2023-11-06 14:20:53 +00:00
Lovell Fuller	cccd1635c5	Small improvements to install error help text	2023-11-06 09:40:45 +00:00
Lovell Fuller	1915c1387e	Docs: recommend use of npm cpu/os flags for cross-install	2023-11-05 14:08:31 +00:00
Lovell Fuller	4a37a27cca	Improve worker thread support by preventing unload on dlclose	2023-11-04 22:23:01 +00:00
Lovell Fuller	ab8a4ed532	Tests: expand expected range of flaky text test Cross-platform font discovery is complex	2023-11-04 21:34:45 +00:00
Lovell Fuller	12fd512b83	CI: simplify npm package smoke tests by using import	2023-11-04 21:15:18 +00:00
Lovell Fuller	239435a6dc	Allow empty lib dir when populating npm packages	2023-11-04 20:08:17 +00:00