Repair PDF
If a PDF won't open or throws errors in other software, this tool gives it a second chance. It uses a lenient PDF parser that tolerates many kinds of corruption stricter readers reject, and if it can open your file, it renders every page it can still read and rebuilds a brand-new, well-formed PDF from those pages. This is best-effort recovery — it recovers whatever remains readable, not a guarantee of fixing every kind of damage. If the file is too badly corrupted to open at all, you'll get a clear, honest message rather than a fake fix.
- Free — no sign-up
- Private — runs in your browser
- Instant results
This tries to open your PDF with a lenient parser that tolerates many kinds of corruption, then rebuilds a clean, well-formed PDF from every page it could still read. It recovers what remains readable — it can’t guarantee fixing every kind of damage.
How to use the Repair PDF
- 1Upload the damaged PDF. Select the file that won't open properly.
- 2Let it attempt recovery. The tool tries to open it and renders every readable page.
- 3Download the rebuilt PDF. If recovery succeeds, download a clean, well-formed PDF.
Frequently asked questions
Will this fix any corrupted PDF?
No tool can guarantee that. This recovers whatever content a lenient parser can still read and rebuilds a clean PDF from it — if the underlying data is too damaged, some or all content may be unrecoverable.
What happens to the original text and formatting?
The rebuilt PDF is made of rendered page images, so the visual layout is preserved but text is no longer selectable or searchable in the recovered file.
Is my file uploaded anywhere?
No. The repair attempt happens entirely in your browser.
Learn more
Why PDFs get large, the difference between structural bloat and heavy images, and how to pick the right compression mode for each.
Why PDFs sometimes stop opening, how a lenient-parser-and-rebuild recovery approach works, and what it can and can't fix.
How to turn paper documents into a PDF using your device's camera, tips for a clean capture, and the fallback photo-upload workflow.
How text-based PDF comparison works, how to read an inline word diff, and where a text-only comparison falls short of a visual diff.