Grzegorz MartensandClaude Opus 5.5 f33227886d M11: eight-bit black-and-white grey takes the smaller of one bit and the grey settings ...

An eight-bit grey image of only black and white was packed to one bit
and stored, and the grey settings never saw it. For a dithered scan that
is bigger than what Reduce File Size made of it before, downsampled to
JPEG: 1-bit Flate can't shrink the dots (a 1200 × 1500 dither at 300 ppi
was 157 KB packed, 67 KB as before). Both are made now, and the smaller
as stored wins, counting a soft mask resampled with the image. Clean
text still packs to one bit. The packing also decodes no further than
its samples can need, as the other image steps do now.

From reviews with the pdfcraft-review skill.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01P6yUtvWGPsJpMLyh6pxSXG

2026-10-29 20:48:02 +01:00

..

audit.rs

fix: Space Audit lines up its columns and counts form fonts as fonts (#2118)

2026-10-15 02:45:58 -04:00

fragments.rs

Merge remote-tracking branch 'origin/main' into fix/1201-optimize-keeps-jpeg-colortransform

2026-10-23 10:13:47 +02:00

images.rs

M11: eight-bit black-and-white grey takes the smaller of one bit and the grey settings

2026-10-29 20:48:02 +01:00

lib.rs

M11: PDF Optimizer stores black-and-white images as CCITT Group 4 when smaller

2026-10-29 20:47:39 +01:00

links.rs

fix(optimize): a GoToR or GoToE /D no longer keeps a local named destination (#4445)

2026-10-24 10:29:33 -04:00

unused.rs

M11: Reduce file size and Optimize PDF drop images nothing draws, such as a deleted image (#894)

2026-10-10 16:21:07 -04:00