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Some text rendering is still missing in raft.pdf #16

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orklann opened this issue Feb 18, 2021 · 4 comments
Closed

Some text rendering is still missing in raft.pdf #16

orklann opened this issue Feb 18, 2021 · 4 comments
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text rendering bug

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@orklann
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orklann commented Feb 18, 2021

Text rendering in two pages are still missing in raft.pdf

Here are the screenshots:

Screen Shot 2021-02-18 at 11 52 58

Screen Shot 2021-02-18 at 11 53 14
@orklann orklann changed the title Some text rendering is still missing on raft.pdf Some text rendering is still missing in raft.pdf Feb 18, 2021
@orklann
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orklann commented Feb 18, 2021

This should be the issue of CMap stream in font dictionary not handled.
That is /ToUnicode in font dictionary.

@orklann
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orklann commented Feb 22, 2021 •
edited

“/ToUnicode” only for text extraction, not for text rendering,
In this issue, we only need to handle NULL encoding for fonts, which is a different approach.
Need to get CGGlyph by unicode character instead of glyph name in this case while font encoding is NULL.

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orklann commented Feb 22, 2021

Issue has been fixed.

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orklann commented Feb 22, 2021

Like to share the fixed screenshots. LOL

Screen Shot 2021-02-22 at 17 22 26

Screen Shot 2021-02-22 at 17 22 38

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