- An RGB image with no ICC profile of its own was written as DeviceRGB
under the CMYK output intent, and the export only warned. In PDF/X-4
it now carries the sRGB profile (assets/icc/sRGB-v2-magic.icc, ICC
v2.1, CC0). JPEGs stay passed through. Untagged PNG, GIF and WebP,
and the decoded TIFF, BMP and PSD fallback, go in as RGB with the
profile. A re-encoded JPEG keeps the source's RGB profile or gets
sRGB. Grey images and images with their own profile are unchanged.
- Every image constructor asked for interpolation. PDF/X-4 and PDF/A
exports now write images without it, which also removes the
ImageInterpolation error that stopped PDF/A exports with a placed
image. Plain exports keep it.
- make_pdfx4 writes pdf:Trapped False into the XMP, matching
/Trapped/False in the document information.
- check_pdfx4 reports an image that asks for interpolation.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Brandon Thomas <echelon@gmail.com>
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