🩹 Repair PDF
Won't open, looks broken, or your PDF viewer throws an error? Upload it below — we'll try to rebuild the file's internal structure and give you back a clean, working copy.
Select the damaged PDF
✅ Repair complete
What is the Repair PDF tool?
Most "broken" PDFs aren't actually missing content — their internal index (the cross-reference table) or trailer got corrupted, often from an interrupted download, a bad copy, or a buggy export. This tool reloads the file with a lenient parser that recovers whatever objects it still can, then rebuilds a fresh, valid file structure and hands you a working copy, all inside your browser.
How to Use It
Select the damaged PDF, then click Repair PDF. The tool attempts to parse whatever is still readable, regenerates a clean cross-reference table and trailer, and reports how many pages it recovered. Download the repaired file and open it in your usual PDF viewer to confirm the content is intact before deleting the original broken copy.
When to Use It
Use it when a PDF won't open, your viewer throws a "damaged file" error, or a document that used to work suddenly fails after being copied, emailed, or downloaded over a shaky connection. It can typically fix broken or missing cross-reference tables and damaged trailers — the structural errors that make readers reject a file outright even when the actual page content is still intact.
Who Benefits
Anyone who's received a corrupted attachment, recovered a partially-downloaded file, or hit a "this file is damaged" error in a PDF viewer can attempt a fix here before assuming the document is lost for good and asking the sender to resend it.