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5b952b2463 RTF: keep Windows and Enhanced Metafile pictures (#4259) (#4648)
The RTF reader only recognised \pngblip and \jpegblip, so a \pict
holding \wmetafile8 (how Word writes pasted and floating pictures) or
\emfblip was dropped and the document opened without its pictures.
Keep them as wmf/emf media when the bytes are a metafile (the extension
comes from the bytes; raster bytes go through the usual image path,
anything else is dropped), sized from \picwgoal/\pichgoal and the scale,
else from \picw/\pich (0.01 mm, or pixels under \wmetafile1; zero or
negative falls back to the default). The metafile renderer already
draws them and the DOCX writer saves them as .wmf/.emf.

RTF export dropped WMF/EMF pictures as well (it re-encoded every other
format through the raster decoder): it now writes \emfblip with the raw
bytes and \wmetafile8 without the placeable header, \picw/\pich in
0.01 mm.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Brandon Thomas <echelon@gmail.com>
2026-10-29 23:43:55 -04:00
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