mirror of
https://github.com/storytold/pdfcraft.git
synced 2026-11-11 21:32:39 +00:00
ImageMagick writes an image's colour space as its own object (`/ColorSpace 10 0 R`, `10 0 obj /DeviceRGB`). Each source's copy of that object was never merged, since it isn't a resource, so identical images compared unequal and every copy was kept: 8 copies of an 80 MB ImageMagick PDF combined into 648 MB instead of 81 MB. Dedupe now compares a reference to a plain value (name, number, boolean or string) as that value. The value objects themselves are still never merged. Combine, Insert Pages and Reduce File Size share this code. Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>