From f1c69969e031687e6d991677dda021a2a4db48e3 Mon Sep 17 00:00:00 2001
From: Albert Astals Cid <aacid@kde.org>
Date: Fri, 29 Dec 2023 17:29:56 +0100
Subject: [PATCH] Fix infinite loop in HorizontalTextLayouter if there's not
 enough space to layout text #2

Happens only if the first chracter we're asking to draw can't be drawn
with the given font and we need to find a new one and the given
available space is negative (as said this function must always layout at
least one character)
---
 poppler/Annot.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/poppler/Annot.cc b/poppler/Annot.cc
index b4c4a7710..e8db39ff3 100644
--- a/poppler/Annot.cc
+++ b/poppler/Annot.cc
@@ -3036,7 +3036,7 @@ class HorizontalTextLayouter
             *availableWidth -= blockWidth;
         }
 
-        while (newFontNeeded && (!availableWidth || *availableWidth > 0)) {
+        while (newFontNeeded && (!availableWidth || *availableWidth > 0 || (isUnicode && i == 2) || (!isUnicode && i == 0))) {
             if (!form) {
                 // There's no fonts to look for, so just skip the characters
                 i += isUnicode ? 2 : 1;