diff --git a/lib/input.js b/lib/input.js
index 80168876..943c01d5 100644
--- a/lib/input.js
+++ b/lib/input.js
@@ -65,11 +65,15 @@ function _createInputDescriptor (input, inputOptions, containerOptions) {
     if (is.defined(inputOptions.pages)) {
       if (is.integer(inputOptions.pages) && is.inRange(inputOptions.pages, -1, 100000)) {
         inputDescriptor.pages = inputOptions.pages;
+      } else {
+        throw is.invalidParameterError('pages', 'integer between -1 and 100000', inputOptions.pages);
       }
     }
     if (is.defined(inputOptions.page)) {
       if (is.integer(inputOptions.page) && is.inRange(inputOptions.page, 0, 100000)) {
         inputDescriptor.page = inputOptions.page;
+      } else {
+        throw is.invalidParameterError('page', 'integer between 0 and 100000', inputOptions.page);
       }
     }
     // Create new image
diff --git a/test/unit/io.js b/test/unit/io.js
index 053b4dcd..0fd04e9e 100644
--- a/test/unit/io.js
+++ b/test/unit/io.js
@@ -648,6 +648,16 @@ describe('Input/output', function () {
     it('Ignore unknown attribute', function () {
       sharp(null, { unknown: true });
     });
+    it('Invalid page property throws', function () {
+      assert.throws(function () {
+        sharp(null, { page: -1 });
+      }, /Expected integer between 0 and 100000 for page but received -1 of type number/);
+    });
+    it('Invalid pages property throws', function () {
+      assert.throws(function () {
+        sharp(null, { pages: '1' });
+      }, /Expected integer between -1 and 100000 for pages but received 1 of type string/);
+    });
   });
 
   describe('create new image', function () {