Repair PDF
Repair PDF rebuilds a damaged or unreadable PDF's internal structure with qpdf, falling back to Ghostscript, so the file opens again in normal viewers.
About Repair PDF
PDFs break in predictable ways. A download that stopped halfway, a USB stick pulled out mid-write, a file exported by software that produced a malformed cross-reference table — all of these leave a document that a viewer refuses to open, or opens with pages missing. The error is usually about a damaged root object or a broken xref, not about the content itself.
The repair pass reconstructs that structure and rewrites the file cleanly. Be realistic about the limits: recovery only works on data that survived. If bytes were never written or the file was truncated badly, some pages will be lost and no tool can invent them. Try the largest copy you still have, including one from an email attachment or a backup.
How to repair pdf
- Select the damaged PDF, or drop it straight onto the upload area.
- Check the file name and size shown, then confirm your selection.
- Click Repair PDF and let the server rebuild the file structure.
- Download the repaired PDF and open it to check the pages.
Why use this tool
Two-stage rebuild
qpdf reconstructs the cross-reference table first. If that fails, Ghostscript re-distills the document from whatever page objects can still be read.
Content left alone
Repair touches structure, not pages. Text, images, fonts and page order come through as they were, with nothing re-rendered or downsampled.
No install needed
Runs on our server and returns a file to your browser, so there is nothing to download, license or configure on your own machine.