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Commit b9c87f1

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jkseppanQuLogic
jkseppan
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QuLogic
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Type-1 subsetting
This reduces pdf file sizes when usetex is active, at the cost of some complexity in the code. We implement a charstring bytecode interpreter to keep track of subroutine calls in font programs. Give dviread.DviFont a fake filename attribute and a get_fontmap method for character tracking. In backend_pdf.py, refactor _get_subsetted_psname so it calls a method _get_subset_prefix, and reuse that to create tags for Type-1 fonts. Mark the methods static since they don't use anything from the instance. Recommend merging to main to give people time to test this, not to a 3.10 point release. Closes #127. Co-Authored-By: Elliott Sales de Andrade <quantum.analyst@gmail.com>
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‎doc/users/next_whats_new/type1_subset.rst

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Type 1 fonts are now subsetted in PDF output
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When using the usetex feature with the PDF backend, Type 1 fonts are embedded
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in the PDF output. These fonts used to be embedded in full, but they are now
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subsetted to only include the glyphs that are actually used in the figure.

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