Repair a PDF

Rebuild a PDF’s internal structure to fix common corruption issues — processed entirely on your device.

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How to use Repair PDF

1Drag your PDF (or PDFs) into the upload area, or click to choose files.
2Adjust the order, page selection, or compression settings.
3Run the tool and download your finished PDF or images.

Why use FileDagadu

Runs entirely in your browser — nothing is uploaded to a server
No account, signup, or watermark required
Works on desktop, tablet and mobile
Free with no daily usage limit

Frequently asked questions

What kinds of PDF problems can this fix?

It rebuilds broken cross-reference tables, corrupted trailers, and similar structural issues by re-parsing the file leniently and writing a fresh, valid PDF from the pages it can recover.

Can it recover missing content?

No — it can only reconstruct valid structure around data that’s still present in the file. Severely damaged or truncated files may not be recoverable.