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RidwanandBrandon Thomas
d9660d4e73
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 <echelon@gmail.com>
46 lines
3.7 KiB
Markdown
46 lines
3.7 KiB
Markdown
# Hardware and platform parity
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> **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)
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Each hardware feature Acrobat Pro uses, per platform, ours against Acrobat's. Acrobat runs on macOS
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and Windows (plus a limited web viewer/editor in Document Cloud); PdfCraft runs on macOS, Windows,
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Linux, FreeBSD and the web. Gaps ranked in [gaps.md](gaps.md).
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**Hardware ≈ 35% ready, 25–50 h** (additional to the features total; scanners, smart cards and
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printing are counted in their feature areas). **Platforms ≈ 70% ready, 15–30 h.**
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## Hardware
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| Feature | Acrobat (macOS / Windows) | PdfCraft macOS | PdfCraft Windows | PdfCraft Linux / FreeBSD | PdfCraft web | Evidence |
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|---|---|---|---|---|---|---|
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| 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 |
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| Multi-threaded rendering | yes | yes (render pool, tiles, watchdog) | yes | yes | single thread | `view.render-priority` |
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| HiDPI / Retina | yes | yes | yes, per-monitor DPI v2 (#324, #725) | yes | yes | text blurry at 1080p/1440p (#730) |
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| Multiple monitors | yes, multiple windows | one window | one window; surfaces fit the GPU limit (#577) | one window | n/a | `view.multiple-windows` planned |
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| 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` |
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| Scanners (TWAIN, WIA, ICA) | yes | none | none | none (SANE) | n/a | `ocr.scanner-acquire` planned |
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| 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 |
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| 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) |
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| 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 |
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| Screen readers | VoiceOver, NVDA, JAWS | AccessKit labels (partial) | AccessKit (partial) | AccessKit (partial) | partial | `a11y.app-screen-reader` partial |
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| Text to speech (Read Out Loud) | yes | none | none | none | none | `a11y.read-aloud` planned |
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| Apple Silicon / ARM64 | native | native | ARM64 build (#61) | ARM64 builds | n/a | `release.yml` |
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## Platforms
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| Platform | Acrobat | PdfCraft | Packaging | Gaps |
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|---|---|---|---|---|
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| macOS | yes | yes | signed and notarized DMG | — |
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| Windows (x64, x86, ARM64) | yes (x64, ARM64) | yes | signed installers | — |
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| Linux | no | yes | AppImage, deb, rpm, Flatpak, tarball | Chinese faces in Flatpak (#689) |
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| FreeBSD | no | yes | package | — |
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| Web | Acrobat online (cloud) | yes (WASM, offline in the browser) | static site | printing, OCR, crash recovery, PKCS #12 signing, hosted deployment |
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## Revision history
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| Date | Change | Summary |
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| 2026-10-10 | major | Created from the code, `vendor/README.md`, `.github/workflows/release.yml`, the print crate's README and user issues |
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| 2026-10-10 | minor | Windows printing shipped (#756): the Windows row's gap is closed; the web row keeps "printing" |
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| 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) |
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