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docs/api-constructor.md

@@ -4,7 +4,7 @@
 
 Constructor factory to create an instance of `sharp`, to which further methods are chained.
 
-JPEG, PNG, WebP, AVIF or TIFF format image data can be streamed out from this object.
+JPEG, PNG, WebP, GIF, AVIF or TIFF format image data can be streamed out from this object.
 When using Stream based output, derived attributes are available from the `info` event.
 
 Non-critical problems encountered during processing are emitted as `warning` events.
@@ -25,6 +25,7 @@ Implements the [stream.Duplex][1] class.
     *   `options.limitInputPixels` **([number][15] | [boolean][14])** Do not process input images where the number of pixels
         (width x height) exceeds this limit. Assumes image dimensions contained in the input metadata can be trusted.
         An integral Number of pixels, zero or false to remove limit, true to use default limit of 268402689 (0x3FFF x 0x3FFF). (optional, default `268402689`)
+    *   `options.unlimited` **[boolean][14]** Set this to `true` to remove safety features that help prevent memory exhaustion (SVG, PNG). (optional, default `false`)
     *   `options.sequentialRead` **[boolean][14]** Set this to `true` to use sequential rather than random access where possible.
         This can reduce memory usage and might improve performance on some systems. (optional, default `false`)
     *   `options.density` **[number][15]** number representing the DPI for vector images in the range 1 to 100000. (optional, default `72`)

docs/api-output.md

@@ -5,7 +5,7 @@
 Write output image data to a file.
 
 If an explicit output format is not selected, it will be inferred from the extension,
-with JPEG, PNG, WebP, AVIF, TIFF, DZI, and libvips' V format supported.
+with JPEG, PNG, WebP, AVIF, TIFF, GIF, DZI, and libvips' V format supported.
 Note that raw pixel data is only supported for buffer output.
 
 By default all metadata will be removed, which includes EXIF-based orientation.
@@ -44,9 +44,9 @@ Returns **[Promise][5]<[Object][6]>** when no callback is provided
 ## toBuffer
 
 Write output to a Buffer.
-JPEG, PNG, WebP, AVIF, TIFF and raw pixel data output are supported.
+JPEG, PNG, WebP, AVIF, TIFF, GIF and raw pixel data output are supported.
 
-If no explicit format is set, the output format will match the input image, except GIF and SVG input which become PNG output.
+If no explicit format is set, the output format will match the input image, except SVG input which becomes PNG output.
 
 By default all metadata will be removed, which includes EXIF-based orientation.
 See [withMetadata][1] for control over this.
@@ -309,22 +309,52 @@ Returns **Sharp**
 
 ## gif
 
-Use these GIF options for output image.
+Use these GIF options for the output image.
 
-Requires libvips compiled with support for ImageMagick or GraphicsMagick.
-The prebuilt binaries do not include this - see
-[installing a custom libvips][11].
+The first entry in the palette is reserved for transparency.
 
 ### Parameters
 
 *   `options` **[Object][6]?** output options
 
+    *   `options.colours` **[number][9]** maximum number of palette entries, including transparency, between 2 and 256 (optional, default `256`)
+    *   `options.colors` **[number][9]** alternative spelling of `options.colours` (optional, default `256`)
+    *   `options.effort` **[number][9]** CPU effort, between 1 (fastest) and 10 (slowest) (optional, default `7`)
+    *   `options.dither` **[number][9]** level of Floyd-Steinberg error diffusion, between 0 (least) and 1 (most) (optional, default `1.0`)
     *   `options.pageHeight` **[number][9]?** page height for animated output
     *   `options.loop` **[number][9]** number of animation iterations, use 0 for infinite animation (optional, default `0`)
     *   `options.delay` **[Array][10]<[number][9]>?** list of delays between animation frames (in milliseconds)
     *   `options.force` **[boolean][7]** force GIF output, otherwise attempt to use input format (optional, default `true`)
 
-<!---->
+### Examples
+
+```javascript
+// Convert PNG to GIF
+await sharp(pngBuffer)
+  .gif()
+  .toBuffer());
+```
+
+```javascript
+// Convert animated WebP to animated GIF
+await sharp('animated.webp', { animated: true })
+  .toFile('animated.gif');
+```
+
+```javascript
+// Create 128x128, non-dithered thumbnail of an animated GIF
+const { pages } = await sharp('animated.gif').metadata();
+const gif = await sharp('animated.gif', { animated: true })
+  .resize({
+    width: 128,
+    height: 128 * pages
+  })
+  .gif({
+    pageHeight: 128,
+    dither: 0
+  })
+  .toBuffer();
+```
 
 *   Throws **[Error][4]** Invalid options