Rebuild a corrupt or unreadable PDF so it opens again.
Repair a damaged PDF by rebuilding its internal structure — cross-reference tables, objects and streams. Recovers files broken by interrupted downloads, faulty exports or disk errors. Files are processed securely and never stored.
Upload your file using the tool above.
Adjust any settings to your preference.
Click the process button and wait for results.
Download your output using the download button.
Structural problems are the fixable ones: a broken cross-reference table, a damaged trailer, or malformed objects left by a faulty export. Rebuilding the index lets viewers open the file again. What cannot be recovered is genuinely missing data — if a download stopped halfway, the absent pages were never there.
Often yes, when the file is complete but its internal structure is broken. Sometimes partially, when the damage sits inside page content. It is always worth trying before giving up on a document, but treat the result as a rescue rather than a guarantee, and check the pages you care about.
Interrupted downloads and transfers are the most common cause, followed by exports from buggy software, files edited by tools that write the format incorrectly, and storage or sync errors. Cloud sync interrupted mid-write is a frequent modern culprit, which is why the file opened fine yesterday.
Yes, Repair PDF is completely free. No signup, no account, and no watermark on outputs. A Pro tier is available for 100 AI ops/day and larger file sizes.
Repair PDF uploads your file over an encrypted connection to our own processing server, converts it, and returns the result. The file is deleted immediately after processing and is never used for anything else. It is not sent to any third party, and we keep no copies.
Drop a broken PDF to repair
Rebuild a corrupt or unreadable PDF so it opens again
Drop your file into the stage to begin.
What it fixes: PDFs get corrupted by interrupted downloads, faulty exports or disk errors. Repair rebuilds the file structure so readers can open it again. Content that was destroyed can’t be recovered, but a structurally-broken file often comes back fully.
Privacy: Your PDF is sent over an encrypted connection, repaired in memory, and deleted immediately after — never stored.