From 3ce94a9f6d2fa5ca78ca15e09e3775b6f517e9c9 Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Fri, 19 Mar 2021 12:09:41 +0100
Subject: [PATCH] Change how landscape pages are rotated, for printing, with
 `enablePrintAutoRotate = true` set

Currently landscape pages are rotated *clockwise*, which for most documents feel wrong since holding the printed pages at their *left* edge causes the landscape pages to be viewed "upside down".
In general, since most documents are LTR ones, it feels more appropriate to instead rotate landscape pages *counterclockwise* for printing.
---
 web/base_viewer.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/web/base_viewer.js b/web/base_viewer.js
index a57bd50c5..34f2e796a 100644
--- a/web/base_viewer.js
+++ b/web/base_viewer.js
@@ -1365,7 +1365,7 @@ class BaseViewer {
       return {
         width: size.height,
         height: size.width,
-        rotation: (size.rotation + 90) % 360,
+        rotation: (size.rotation - 90) % 360,
       };
     });
   }