From 74ad90cb8ff638642a40a4d4b62d31e906392493 Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Wed, 16 Aug 2017 13:21:33 +0200
Subject: [PATCH] Update the mask data inversion in `PDFImage.createMask` to be
 compatible with both `Uint8Array` and `Uint8ClampedArray`

---
 src/core/image.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/image.js b/src/core/image.js
index 466b49833..7e01fb528 100644
--- a/src/core/image.js
+++ b/src/core/image.js
@@ -253,7 +253,7 @@ var PDFImage = (function PDFImageClosure() {
     // in this thread can be relying on its contents.
     if (inverseDecode) {
       for (i = 0; i < actualLength; i++) {
-        data[i] = ~data[i];
+        data[i] ^= 0xFF;
       }
     }