Files
pdfcraft/docs/hardware-parity.md
RidwanandBrandon Thomas d9660d4e73 Docs: sync the progress docs with issues closed on 2026-10-10 (#1064)
The parity and roadmap docs were last refreshed before a batch of fixes
merged, so they still described closed issues as open problems.

- #774 (encrypted output rejected by Acrobat, fixed by #836): gap 1
  removed from gaps.md; its remaining interop-suite work moved to gap 12.
  Gap numbers are kept so existing "gap N" references stay valid.
- #756 (Windows printing, #847): Printers row, Print area and roadmap
  rank 1 now name web printing as the remaining gap.
- #740 column select (#765), #759 1:1 touchpad scrolling (#868),
  #810 Shift-Cmd-G (#835), #825 (#822).
- #844 multi-object move (#907): marked partial, same page only.
- #799, #800, #807, #809, #811, #815-#819, #821 (incl. the #816 panic):
  gap 6 and the area tables list them as fixed.

Scores, readiness percentages and the stage are not re-judged; only the
rank-0 estimate drops by gap 1's 8-15 h (40-70 -> 32-55).

Co-authored-by: Brandon Thomas <[email protected]>
2026-10-11 13:14:48 -04:00

3.7 KiB
Raw Permalink Blame History

Hardware and platform parity

Last reviewed: 2026-10-10 · Last updated: 2026-10-11 · Change: minor (Windows printers row and 1:1 touchpad scrolling, #756, #759) · Target: Adobe Acrobat Pro (Acrobat DC, continuous track 26.002.21931, macOS)

Each hardware feature Acrobat Pro uses, per platform, ours against Acrobat's. Acrobat runs on macOS and Windows (plus a limited web viewer/editor in Document Cloud); PdfCraft runs on macOS, Windows, Linux, FreeBSD and the web. Gaps ranked in gaps.md.

Hardware ≈ 35% ready, 25–50 h (additional to the features total; scanners, smart cards and printing are counted in their feature areas). Platforms ≈ 70% ready, 15–30 h.

Hardware

Feature Acrobat (macOS / Windows) PdfCraft macOS PdfCraft Windows PdfCraft Linux / FreeBSD PdfCraft web Evidence
GPU page rendering yes (Page Display ▸ GPU-accelerated rendering) no: CPU raster, GPU for UI compositing (wgpu, Metal) no (wgpu DX12, GL fallback) no (wgpu Vulkan/GL) no (WebGL/WebGPU UI) crates/render; gap 20
Multi-threaded rendering yes yes (render pool, tiles, watchdog) yes yes single thread view.render-priority
HiDPI / Retina yes yes yes, per-monitor DPI v2 (#324, #725) yes yes text blurry at 1080p/1440p (#730)
Multiple monitors yes, multiple windows one window one window; surfaces fit the GPU limit (#577) one window n/a view.multiple-windows planned
Printers all, PostScript, printer properties CUPS spooler Windows spooler: lists printers, prints rasterised at the printer's resolution (#756, PR #847) CUPS spooler none crates/print/README.md
Scanners (TWAIN, WIA, ICA) yes none none none (SANE) n/a ocr.scanner-acquire planned
Smart cards and USB tokens yes (PKCS #11, CryptoTokenKit, CNG) Keychain identities (software keys) CNG store keys, with PIN prompts for cards (#742) none (PKCS #11 planned) none sign.pkcs11 planned
Pen and touch Touch mode, pen ink, Windows Ink trackpad pinch zoom; ink from pointer, no pressure ink from pointer, no pressure or touch mode as macOS pointer touchpad scrolling 1:1 (#759, PR #868)
Keyboard input methods (IME) yes yes; Japanese and Korean IME fixes patched into winit yes (Microsoft Korean cursor fix) X11 and Wayland IME fixes browser vendor/README.md winit patches 2–10
Screen readers VoiceOver, NVDA, JAWS AccessKit labels (partial) AccessKit (partial) AccessKit (partial) partial a11y.app-screen-reader partial
Text to speech (Read Out Loud) yes none none none none a11y.read-aloud planned
Apple Silicon / ARM64 native native ARM64 build (#61) ARM64 builds n/a release.yml

Platforms

Platform Acrobat PdfCraft Packaging Gaps
macOS yes yes signed and notarized DMG —
Windows (x64, x86, ARM64) yes (x64, ARM64) yes signed installers —
Linux no yes AppImage, deb, rpm, Flatpak, tarball Chinese faces in Flatpak (#689)
FreeBSD no yes package —
Web Acrobat online (cloud) yes (WASM, offline in the browser) static site printing, OCR, crash recovery, PKCS #12 signing, hosted deployment

Revision history

Date Change Summary
2026-10-10 major Created from the code, vendor/README.md, .github/workflows/release.yml, the print crate's README and user issues
2026-10-10 minor Windows printing shipped (#756): the Windows row's gap is closed; the web row keeps "printing"
2026-10-11 minor The Printers row's Windows cell still said none: now the Windows spooler (#756, PR #847). Touchpad scrolling 1:1 (#759, PR #868)