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Allow Type3 subsetting of otf fonts in pdf backend. #18651

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Merged
merged 1 commit into from
Oct 11, 2020

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anntzer
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@anntzer anntzer commented Oct 4, 2020

This is supported since 19359c1, results in smaller files (much
smaller when using CJK fonts), and avoids running into issues with type
42 embedding and certain pdf readers such as Acrobat Reader.

Closes #12636.

PR Summary

PR Checklist

  • Has pytest style unit tests (and pytest passes).
  • Is Flake 8 compliant (run flake8 on changed files to check).
  • New features are documented, with examples if plot related.
  • Documentation is sphinx and numpydoc compliant (the docs should build without error).
  • Conforms to Matplotlib style conventions (install flake8-docstrings and pydocstyle<4 and run flake8 --docstring-convention=all).
  • New features have an entry in doc/users/next_whats_new/ (follow instructions in README.rst there).
  • API changes documented in doc/api/next_api_changes/ (follow instructions in README.rst there).

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I guess a test font file would be too large; the linked issue is fixed. The text cannot be selected though, which seems a slight regression. On the other, it's actually displaying the right character glyphs now.

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anntzer commented Oct 6, 2020

See #18517 (review) re: text selection. I think it would be very hard to have that working, and in any case I'd say correct but unselectable glyphs is better than incorrect but selectable glyphs :)

@timhoffm timhoffm added this to the v3.4.0 milestone Oct 11, 2020
This is supported since 19359c1, results in smaller files (*much*
smaller when using CJK fonts), and avoids running into issues with type
42 embedding and certain pdf readers such as Acrobat Reader.
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anntzer commented Oct 11, 2020

rebased

@timhoffm timhoffm merged commit 7d03d8b into matplotlib:master Oct 11, 2020
@anntzer anntzer deleted the pdfotft3 branch October 11, 2020 17:19
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Characters doesn't display correctly when figure saved as pdf with a custom font
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