Repair PDF
Fix a PDF that won’t open, shows up blank, or reports “file is corrupt”. We rebuild the page index on your device — the broken file is never uploaded.
0 bytes of your file have left this device. Counted live in this tab, not claimed — open your browser’s Network tab and watch.
How it works
- 1
Drop the PDF that won’t open — it’s read and rebuilt on your device, never uploaded.
- 2
We reconstruct the page index (the part that’s usually broken) and drop corrupted junk.
- 3
Download the repaired file and open it to confirm — all in your browser, always free.
Frequently asked questions
What kinds of damage can this fix?
The common ones: a broken cross-reference table or trailer (the index a reader uses to find pages), truncated or badly-written files, and malformed metadata. Rebuilding the file from a tolerant parse fixes most “won’t open” and “file is corrupt” cases.
What can’t it fix?
If the actual page content — not just the index — is destroyed (for example a download that cut off mid-file), those pages can’t be invented back. We tell you honestly how many pages were recoverable rather than handing you a silently incomplete file.
Is my broken file uploaded anywhere?
No. A damaged document is exactly the file you shouldn’t send to a random server. The repair runs entirely in your browser — nothing is uploaded, stored, or seen by anyone but you.
Is it really free?
Yes — it runs on your device, so it costs us nothing and stays free and unlimited, no signup.
Last improved
Changes to this tool specifically, not the site.
- New tool
Repair PDF — fix files that won’t open
Got a PDF that shows up blank or says “file is corrupt”? Repair PDF rebuilds the page index that’s usually broken and tells you honestly how many pages came back — all on your device, so the damaged file is never uploaded.