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Converting images

Releases and changes

Optional module · pdftoolkit/pdf-images 0.1.7

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Unreleased

0.1.7 — 2026-10-14

Compatibility

  • Accepts stable core roukmoute/pdf:^0.2 || ^0.3 || ^0.4 || ^0.5 || ^0.6.
  • Locks release validation to published core 0.5.5 without changing development tool versions or commits.
  • Checks the unchanged module against the core 0.6 candidate on PHP 8.3, 8.4 and 8.5.
  • Preserves the image conversion API, supported formats and limits; output PDF version rules remain in the core.

0.1.6 — 2026-10-14

Bilingual documentation

  • Makes English the default language for the README, guides and complete release history.
  • Adds complete French counterparts with reciprocal language links and French documentation entrypoints.
  • Translates explanatory example comments while preserving executable tokens and output data.
  • Locks validation to published core 0.5.4 without changing other dependency versions or commits.
  • Preserves API identifiers, original fixtures and runtime behaviour.

0.1.5 — 2026-10-14

Installation and publication

  • Publishes the package on Packagist and reduces installation to one composer require command in an application.
  • Uses default Composer repositories and connects package metadata to its documentation at https://pdftoolkit.github.io/.
  • Locks checks to stable core roukmoute/pdf:0.5.3 without changing development tool versions.
  • Verifies indexing of published versions and installation without VCS or local repositories. Preserves the PHP API, existing mechanisms and limits.

0.1.4 — 2026-10-14

Documentation

  • Connects shared documentation to https://pdftoolkit.github.io/ and adds the stable images entrypoint at /modules/images/.
  • Entrusts shared guides and site publication to PDFToolkit/pdftoolkit.github.io, with module sources pinned to their published versions and exact commits.
  • Corrects README compatibility information to reflect the existing roukmoute/pdf:^0.2 || ^0.3 || ^0.4 || ^0.5 constraint.
  • Preserves the API, conversions, dependencies and their locked versions; this release changes documentation only.

0.1.3 — 2026-10-13

Compatibility

  • Accepts stable core roukmoute/pdf:^0.2 || ^0.3 || ^0.4 || ^0.5.
  • Locks checks to published core 0.4.0 under PHP 8.3, 8.4 and 8.5.
  • Preserves the images API and limits; no additional image-format processing is added by this compatibility patch.

0.1.2 — 2026-10-13

Compatibility

  • Accepts stable core roukmoute/pdf:^0.2 || ^0.3 || ^0.4.
  • Preserves the module API and external-data processing boundary.
  • Checks stable core 0.3.0 and new core 0.4 objects in development under PHP 8.3, 8.4 and 8.5.

0.1.1 — 2026-10-13

Compatibility

  • Accepts core roukmoute/pdf:^0.2 || ^0.3, allowing installation with new PDF objects in the 0.3 series without changing the module API.
  • Revalidates tests and independent PDFs with stable core 0.2.1. No reading or conversion mechanism is added by this patch.

0.1.0 — 2026-10-13

First release of pdftoolkit/pdf-images, under PDF\Images. The module depends on core roukmoute/pdf:^0.2, which retains normalised PDF image objects; the core does not depend on image converters.

Added

  • Nine components to convert PNG or JPEG bytes into SampledImage and DCTImage, without implicit file or URL access.
  • Decoding of static non-interlaced PNGs with eight bits per component: greyscale, RGB, palette, greyscale with alpha and RGBA.
  • PNG signature, chunk order, size and CRC validation; reconstruction of all five scanline filters and palette expansion.
  • Alpha separation, including tRNS, to construct the /SMask explicitly using core objects.
  • Reading of markers, tables, frames and components in baseline or progressive eight-bit Huffman DCT JPEGs: greyscale, RGB and Adobe CMYK with transform zero.
  • Preservation of original JPEG bytes and determination of PDF colour, transformation and inversion parameters.
  • Per-instance limits for encoded and decoded data, dimensions, pixels and chunk or marker count; bounded PNG inflation.
  • Four-image transparency example and original fixtures under the MIT licence.
  • Tests of samples, alpha, preserved bytes, invalid structures and limits; checks on PHP 8.3, 8.4 and 8.5.

Animated or interlaced PNGs, other bit depths, embedded ICC profiles, YCCK JPEGs and ambiguous colour semantics are rejected. EXIF metadata does not trigger automatic rotation. The module does not perform entropy decoding of JPEG coefficients; the PDF viewer renders them.

Guide source at the documented commit ↗