README

English · Nederlands



 Open PDF Studio

A free, open-source PDF editor for people who work with drawings: markup, measuring to scale, revision compare and CAD import, on Windows, macOS, Linux, Android and in the browser.







 Try in your browser  ·  Download

!A floor plan with a revision cloud, a callout and a measured distance; the Format tab and the properties of the selected callout are open



Open PDF Studio is a PDF editor for architects, engineers, contractors and everyone else who reviews drawings and documents. You mark up, measure with the scale the drawing carries, compare revisions, place symbols, count quantities and organise pages, with no subscription, account or watermark.

It runs as a desktop app on Windows, macOS and Linux, as an Android app, and in your browser with nothing to install. The desktop app adds what needs your computer: printing, OCR, DWG and DXF import and export, digital signatures and a local AI connection (MCP).

 Try it

Open the browser version and open a PDF from your computer. You get the same ribbon, markup, measuring, compare, symbol and page tools as in the desktop app. Your document stays in your browser and is not uploaded; a page reload starts empty. Buttons for desktop-only features are switched off and say why.

 Download

Every release is on the releases page.

| Platform | Files |
|----------|-------|
| Windows | …_x64-setup.exe (all users, needs admin), …_x64_user-setup.exe (current user only), …_x64_portable.zip (no install, details) |
| macOS | …_universal.dmg (Apple silicon and Intel, macOS 10.15 or later) |
| Linux | .deb, .AppImage and .snap for x86_64, also in the Snap Store; Nix flake. See docs/install-linux.md |
| Android | open-pdf-studio-release.apk (64-bit ARM) |
| Other | open-pdf-studio.mcpb (AI connection for MCP clients), open-pdf-studio-web-.tar.gz (web version to host yourself), winget manifests, the Python library (.whl and .tar.gz) |

Updates. The Windows installers, the macOS app, the .deb and the AppImage check for updates and install them through the built-in updater, which only accepts updates signed with the project's update key. The snap updates through the Snap Store. The portable version and the Android app do not update themselves.

Signing. The Windows installers and the program files they install are Authenticode-signed with Azure Trusted Signing; the release workflow installs the signed installer and checks every signature. The macOS app is signed with a Developer ID and notarized by Apple; the workflow checks it with codesign, spctl and stapler. From the first release after 2026.45.0 (the signing job came later), the .deb, the AppImage and the snap each have a detached OpenPGP signature (.asc) of the OpenAEC Foundation release key, fingerprint 13F6D414ADEE4ED4CD09AC60601D86C93C504D29, and SHA256SUMS with SHA256SUMS.asc covers the Linux files; check them with gpg --verify .asc  against docs/keys/openaec-signing-public-key.asc (see docs/install-linux.

Top issues

Latest release

🇳🇱 Nederlands

 Wat is nieuw in v2026.45.0

- Het goedgekeurde Snap Store-logo is verwerkt in de app en alle toepassingsiconen.

Gratis, open-source PDF-annotatie-editor gebouwd met Tauri.

 Downloads
- Windows (systeem): download de _x64-setup.exe-installer voor installatie voor alle gebruikers (admin vereist)
- Windows (gebruiker): download de _x64_user-setup.exe-installer voor alleen de huidige gebruiker (geen admin nodig)
- Windows (draagbaar): download _x64_portable.zip, pak uit en start open-pdf-studio.exe; geen installatie, alle gegevens in de map data ernaast
- macOS: download het .dmg