v1.25.1

CoreBunch/Instaticv1.25.1Sep 28, 2026by abimaelmartell

Upgrading?

AI Summary

A patch release fixing font decoding issues, specifically for ToUnicode CMaps and Type1 fonts.

Key Highlights

  • Fixed reading of simple fonts when ToUnicode CMap declares two-byte codes
  • Added fallback encoding for Type1 fonts missing base encodings
  • Improved repair logic for short ToUnicode CMaps

New Features

  • Corrected text extraction for kerned runs
  • TeX font ligature support
  • Better handling of 'notdef' glyphs

Full Release Notes

Changes since 1.25.0:

- Read simple fonts (Type1, TrueType, Type3) one byte per code when their ToUnicode CMap declares a two-byte codespace: text shown as a kerned run of short strings no longer loses every two-byte string (`Income Statement` read as `Iometatent`). The stale-CMap check for Type1 fonts judges such a CMap too, and the page detector counts such a font's text byte by byte (#595).
- Read a Type1 font whose `/Encoding` names no base encoding through the built-in encoding of its embedded program (PDF 32000-1:2008, Table 114): TeX's fonts read their ligatures (`efficiency`, was `eciency`), curly quotes, dashes and math symbols. A code the program leaves at `.notdef` reads as nothing, the word space excepted, and the base-14 width fallback measures such fonts as they read (#596).
- Take a repaired ToUnicode CMap for a string of one or two glyphs only on evidence beyond short common words: `engagement` no longer reads as `engageaent`, `AND` as `ANa` or `Three` as `ThaTe` (#597).

No API changes.

Release preparation: #604.

[Full changelog](https://github.com/firecrawl/pdf-inspector/compare/v1.25.0...v1.25.1)

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