diff --git a/docs/release_notes.rst b/docs/release_notes.rst index 968adced..34e610a2 100644 --- a/docs/release_notes.rst +++ b/docs/release_notes.rst @@ -17,7 +17,7 @@ Note that it is licensed under GPLv3, so scripts that ``import ocrmypdf`` and ar v7.2.0 ------ -**About lossy JBIG2** +**Lossy JBIG2 behavior change** A user reported that ocrmypdf was in fact using JBIG2 in **lossy** compression mode. This was not the intended behavior. Users should `review the technical concerns with JBIG2 in lossy mode `_ and decide if this is a concern for their use case. @@ -31,6 +31,10 @@ Users who did not install an optional JBIG2 encoder are unaffected. **Other issues** +- When the image optimizer quantizes an image to 1 bit per pixel, it will now attempt to further optimize that image as CCITT or JBIG2, instead of keeping it in the "flate" encoding which is not efficient for 1 bpp images. (`#297 `_) + +- Images in PDFs that are used as soft masks (i.e. transparency masks or alpha channels) are now excluded from optimization. + - Fixed handling of Tesseract 4.0-rc1 which now accepts invalid Tesseract configuration files, which broke the test suite. v7.1.0