From 219ca38c869d9425b9432b81a69d47b6f2ea4192 Mon Sep 17 00:00:00 2001
From: Calixte Denizet <calixte.denizet@gmail.com>
Date: Wed, 17 Jul 2024 14:08:54 +0200
Subject: [PATCH] Remove active smask when restoring the initial canvas state

Fixes #18444.
---
 src/display/canvas.js         |  1 +
 test/pdfs/issue18444.pdf.link |  1 +
 test/test_manifest.json       | 10 ++++++++++
 3 files changed, 12 insertions(+)
 create mode 100644 test/pdfs/issue18444.pdf.link

diff --git a/src/display/canvas.js b/src/display/canvas.js
index 811e625a72df61..247870f3b2d3cd 100644
--- a/src/display/canvas.js
+++ b/src/display/canvas.js
@@ -1006,6 +1006,7 @@ class CanvasGraphics {
       this.restore();
     }
 
+    this.current.activeSMask = null;
     this.ctx.restore();
 
     if (this.transparentCanvas) {
diff --git a/test/pdfs/issue18444.pdf.link b/test/pdfs/issue18444.pdf.link
new file mode 100644
index 00000000000000..f1e437217b2644
--- /dev/null
+++ b/test/pdfs/issue18444.pdf.link
@@ -0,0 +1 @@
+https://github.com/user-attachments/files/16264442/9.170.1.pdf
diff --git a/test/test_manifest.json b/test/test_manifest.json
index f970556c0b5126..c718e23dfca777 100644
--- a/test/test_manifest.json
+++ b/test/test_manifest.json
@@ -10160,5 +10160,15 @@
     "firstPage": 2,
     "lastPage": 2,
     "type": "eq"
+  },
+  {
+    "id": "issue18444",
+    "file": "pdfs/issue18444.pdf.pdf",
+    "md5": "233b7b72d67133044338a728d52d58a9",
+    "rounds": 1,
+    "link": true,
+    "firstPage": 1,
+    "lastPage": 1,
+    "type": "eq"
   }
 ]