Processed on your device — never uploaded
Repair a damaged PDF
Best-effort fix for damaged files
Drop a file here, or browse
.pdf — processed on your device, never uploaded
How it works
- 1
Drop the PDF that refuses to open.
- 2
We parse leniently and re-serialize a healthy structure.
- 3
Download the repaired file (when recoverable).
Why FoldPDF
- Files processed 100% locally — verifiable in DevTools
- No file size or daily usage limits
- No watermarks, no accounts, no paywalls
- Works offline once loaded
Frequently asked questions
Is this repair pdf tool really free?+
Yes — every FoldPDF tool is free with no file limits, watermarks, or sign-up. Processing runs on your own device, so it costs us nothing to serve.
Are my files uploaded to a server?+
No. Files are processed entirely inside your browser using WebAssembly. You can verify with your browser's developer tools that no file data is transmitted.
How does repair pdf work?+
Attempt to recover a PDF with a broken cross-reference table, truncated trailer or malformed objects by rebuilding its structure from scratch.