libreoffice/0001-tdf-155161-Always-embed-fonts-with-CFF2-table-as-PDF.patch

From 79250a55589007930278e3fa59ccdf24c6ff8ea6 Mon Sep 17 00:00:00 2001
From: Khaled Hosny <khaled@aliftype.com>
Date: Mon, 8 May 2023 16:14:52 +0300
Subject: [PATCH] tdf#155161: Always embed fonts with CFF2 table as PDF Type 3
 fonts
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

PDF doesn’t support CFF2 table and we currently don’t convert them to
Type 1 (like we do with CFF table), so treat it like fonts with
variations and embed as Type 3 fonts.

Change-Id: I963b55d5d0ed1470eda157c7e10cae63195a0c91
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/151515
Tested-by: Jenkins
Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
---
 vcl/source/gdi/pdfwriter_impl.cxx | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/vcl/source/gdi/pdfwriter_impl.cxx b/vcl/source/gdi/pdfwriter_impl.cxx
index 6b9fb711626a..ce26ea6b1342 100644
--- a/vcl/source/gdi/pdfwriter_impl.cxx
+++ b/vcl/source/gdi/pdfwriter_impl.cxx
@@ -6283,6 +6283,13 @@ void PDFWriterImpl::registerGlyph(const sal_GlyphId nFontGlyphId,
                                   sal_uInt8& nMappedGlyph, sal_Int32& nMappedFontObject)
 {
     auto bVariations = !pFace->GetVariations(*pFont).empty();
+    // tdf#155161
+    // PDF doesn’t support CFF2 table and we currently don’t convert them to
+    // Type 1 (like we do with CFF table), so treat it like fonts with
+    // variations and embed as Type 3 fonts.
+    if (!pFace->GetRawFontData(HB_TAG('C', 'F', 'F', '2')).empty())
+        bVariations = true;
+
     if (pFace->IsColorFont() || bVariations)
     {
         // Font has colors, check if this glyph has color layers or bitmap.
-- 
2.40.1