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Repair PDF

Fix PDFs that will not open or show errors.

Runs on your device. Your file is never uploaded.

Choose a file or drop it here

Your file stays on this device.

How to repair pdf

Add the damaged PDF.
We rebuild its structure with qpdf, right in your browser.
Download the repaired copy.

Questions

Is my file uploaded?

No. This tool runs inside your browser with code loaded from signofficially.com. Your file is read, changed and saved on your own device. Open your browser's developer tools, choose the Network tab and use the tool: no file leaves your computer.

Is it free?

Yes. Every on-device tool is free to use, with no limits. Paid plans add unlimited signature requests, teams and more.

More tools

Compress PDFMake a PDF smaller for email and uploads. Remove metadataStrip author, software and hidden details before sharing. Resize pagesScale every page to A4, Letter or a size you choose. Merge PDFCombine several PDFs into one, in the order you choose.