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PDF Output: Ignore upto 8 byte glyph data size mismatches when merging identical glyphs. Fixes #1857268 [Private bug](https://bugs.launchpad.net/calibre/+bug/1857268)

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Kovid Goyal 2019-12-24 09:34:21 +05:30
parent 7366d9f7d4
commit 89ee458377
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src/calibre/utils/fonts/sfnt/merge.py
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@ -27,7 +27,7 @@ def merge_truetype_fonts_for_pdf(*fonts):
if prev_glyph_data is None:
all_glyphs[glyph_id] = glyf.glyph_data(offset, sz, as_raw=True)
else:
if abs(sz - len(prev_glyph_data)) > 4:
if abs(sz - len(prev_glyph_data)) > 8:
raise GlyphSizeMismatch('Size mismatch for glyph id: {} prev_sz: {} sz: {}'.format(glyph_id, len(prev_glyph_data), sz))
glyf = ans[b'glyf']