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mtlcl410 4f436d3dd4 M5: line comments draw their leader lines and caption (ISO 32000-2 Table 178) (#4354)
A Line annotation without an appearance was drawn along /L with its
endings there, ignoring /LL, /LLE, /LLO, /Cap, /CP and /CO. With /LL,
/L gives the ends of the leader lines, not of the line itself.

- The line sits |LL| + LLO from /L, on the left of travel for a
  positive /LL; leader lines run from LLO off /L to LLE past the line.
- /LE endings are drawn at the line itself.
- /Cap true draws /Contents (or the plain text of /RC) in black
  Helvetica 10, turned with the line: Inline breaks the stroke around
  it, Top sets it above, /CO shifts it (with a tick when moved off).
- PdfCraft measurements keep /PCMeasureValue as their caption.
- undrawable_text reports caption text the standard font can't draw.
- Non-finite, huge and negative values, and a zero-length /L, are
  handled leniently; captions are cut to 256 characters.


Claude-Session: https://claude.ai/code/session_0175FWj4xFhMhSH3UpMU8DSC

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-24 10:30:16 -04:00
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