3906dcdff5
* M10: exported images keep their transparency, JPEG cut-outs included (#645) Export all images and Save image as wrote a JPEG with a soft mask as the bare JPEG and dropped soft masks of another size, JPEG-compressed soft masks, stencil /Mask images and colour-key /Mask arrays, so cut-out images came out on a solid white or black background. - An image with transparency (/SMask, stencil /Mask, colour-key /Mask) is written as a PNG with it as alpha, JPEG images included (decoded with the image crate's JPEG decoder, already in the tree). JPEGs without transparency are still written byte for byte. - Soft and stencil masks of another size are scaled to the image's size; /Decode inversion is honoured and /Matte pre-blending is undone. - Image sizes are checked (positive, at most 100 Mpx) before use, so a negative /Width no longer overflows in Save image as. - Regression tests: JPEG + soft mask, scaled soft mask, stencil mask, colour key, matte, and damaged masks/sizes (all fail or panic on main). Fixes #645 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * M10: use as_chunks for colour-key pairs (clippy 1.99 chunks_exact_to_as_chunks) (#645) Rust 1.99's clippy denies chunks_exact with a constant size, which failed the Clippy step on all CI targets. as_chunks::<2> also drops the indexing. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> --------- Co-authored-by: DWAA1660 <DWAA1660@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> Co-authored-by: Brandon Thomas <echelon@gmail.com> |
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| Cargo.toml | ||
| README.md | ||
README.md
pdfcraft-create
Layer L4. Create a PDF (Acrobat's Create a PDF tool), execution plan M10.2:
blank(width, height, pages): an empty document;from_images(&[(name, bytes)]): one page per image, sized from the image's resolution (PNGpHYs, JPEG JFIF density; 72 dpi when absent). JPEG data is embedded as is (/DCTDecode, grey, RGB or Adobe-inverted CMYK); PNG is decoded and stored with Flate, with transparency as a soft mask. An ICC profile in the file (JPEGAPP2 ICC_PROFILE, PNGiCCP) that matches the image's colour space is kept as an/ICCBasedcolour space with the device space as/Alternate; images with the same profile share one profile object. JPEG metadata scanning skips marker fill bytes and reads application segments after the frame header, stopping at the first scan or end marker. Broken or mismatched ICC profiles still fall back to the device colour space;from_images_with_resolution(images, ImageResolution::Dpi(dpi)): override the page resolution (1–1200 dpi), without resampling or recompressing image pixels. Use 72 dpi for one point per pixel, orImageResolution::Embeddedfor the same behavior asfrom_images. The largest page side is still capped at 14,400 points;from_text(text, …): plain text set in Helvetica, wrapped and paginated.
Every function returns a pdfcraft_cos::Document; the caller writes it.