Repair a Damaged PDF
Repair a damaged or corrupted PDF file free online, and recover as much content as possible.
Drag & drop your damaged PDF here
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No signup needed · Repaired locally in your browser
A PDF that won't open, shows garbled content, or triggers an error message usually has some internal structural damage — often from an interrupted download, a failed save, or a bug in the software that created it. This tool attempts to rebuild that structure.
Repair works by reading whatever valid data remains in the file and reconstructing a clean, standards-compliant PDF around it, recovering as much of the original content as the damage allows.
How to repair a damaged pdf
Upload the damaged PDF
Choose the file that won't open correctly or shows an error.
Let it analyze and repair
The file's internal structure is scanned, and any recoverable content is rebuilt into a working PDF.
Download the repaired file
A working version of your document is ready to download.
Common ways people use this tool
Office workers repair a PDF that got corrupted during a failed download from a client's file-sharing link. Students repair a report file that stopped opening after their laptop crashed mid-save.
Archivists repair old PDF files from a legacy system that no longer opens correctly in modern software, and small businesses repair a corrupted invoice archive before it needs to be referenced for an audit.
A quick tip
If a repaired file is still missing some content, check whether you have an earlier backup or a copy from wherever the file was originally shared — repair recovers what's structurally salvageable, but severely damaged sections can't always be reconstructed.
Related tools
Pair this with another tool to finish the job.
Frequently asked questions
Can every corrupted PDF be fully repaired?
Not always — recovery depends on how much of the file's original data is still intact; some severely damaged files can only be partially recovered.
Will repairing change the content of my document?
No, repair only rebuilds the file's structure — it doesn't alter or add to the actual content.
What usually causes a PDF to become corrupted?
Common causes include an interrupted download or upload, a crash during saving, or an error from the software that originally created the file.
Can I repair a password-protected PDF?
You'll need to unlock it first if you know the password, then run the repair on the unprotected file.
How long does repair usually take?
Most files process within a few seconds; larger or more heavily damaged files may take a bit longer.