From cfd5a64df575ff0739208f60dd76aaf72efe837d Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Thu, 3 Sep 2015 17:35:32 +0200
Subject: [PATCH] Ensure that the clipping path is reset when the state is
 restored (issue 6413)

According to the specification, see `NOTE 2` in http://www.adobe.com/content/dam/Adobe/en/devnet/acrobat/pdfs/PDF32000_2008.pdf#G7.3882161, it appears that we should ensure that the clipping path is reset when the restore (`Q`) operator is encountered.

Fixes 6413.
---
 src/display/canvas.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/display/canvas.js b/src/display/canvas.js
index 8e8deda9b..033068719 100644
--- a/src/display/canvas.js
+++ b/src/display/canvas.js
@@ -970,6 +970,9 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
         this.current = this.stateStack.pop();
         this.ctx.restore();
 
+        // Ensure that the clipping path is reset (fixes issue6413.pdf).
+        this.pendingClip = null;
+
         this.cachedGetSinglePixelWidth = null;
       }
     },