Free Online PDF Editor
Read, annotate, organize and secure PDFs with an open-source alternative to Acrobat. It runs in your browser: free, no sign-up, and your files are not uploaded. A free desktop app is also available.
Prefer an installed app? Download the free desktop app
- Open your browser developer tools and switch to the Network tab
- Open a file in the editor
- Your file never appears as an upload request
Best on a desktop browser. This editor has desktop menus and shortcuts.
Engine start screen, captured 2026-10-12
Formats it opens
What the engine's own documentation lists. Our own tests are in the compatibility table below.
| Format | Listed by the engine | Tested by us |
|---|---|---|
| PDF viewing, forms, comments and page organization | Works |
What you can do
- Read PDFs with accurate text rendering
- Add comments, highlights and threaded notes
- Fill in forms
- Combine, split, extract and reorder pages
- Edit document properties and bookmarks
- Open password-protected documents
Compatibility
tested 2026-10-12 · engine 0.6.0 · chromium 152 desktop · local server
| Check | Result | Notes |
|---|---|---|
| Editor starts | Works | Loaded, with a web-style interface |
| Open a PDF | Works | A test PDF opened and rendered correctly, and annotation and reading tools appeared |
| Combine, split or save a PDF | Not tested yet | We have not run an open test for this format yet |
| Phone screen (390 px wide) | Partial | It shows, but the side panel is open and squeezes the page |
Known issues
- This is a large editor: the first start downloads about 38.7 MB before compression, so it can take a while on a slow connection. Your browser keeps it afterwards.
- The tests above ran on a local test server, before this site went live.
When to keep the original software
Keep using the desktop PDF software for certified digital signatures, redaction workflows, or form creation tools you rely on.
FAQ
Can I use it in my browser now?
Yes. Press Open editor on this page. The first start downloads about 38.7 MB, then your browser keeps it.
Is there a desktop app too?
Yes. It is open source and free to download from its official page.
Are my PDFs uploaded?
Not by the editor. It is built to run on your own device.
Can I merge PDFs?
The editor lists combine, split and extract. We have not tested them yet.
Runs the open-source PdfCraft engine v0.6.0 (38.7 MiB) · MIT / Apache-2.0 · Last tested 2026-10-12 · source · license