Rebuild a damaged PDF into a fresh file in your browser using qpdf WASM.
The file stays local while qpdf attempts a structural repair and rewrite.
Choose a damaged PDF file or drag it here. The document is repaired locally in your browser.
Damaged PDFs often fail because their internal cross-reference tables or object structure no longer line up.
qpdf WASM can often recover those documents by reading what it can, rebuilding the structure, and writing a fresh PDF file.
The tool can ask qpdf to rebuild the document structure more aggressively before falling back to a lighter rewrite.
The PDF never leaves your device. Everything runs inside WebAssembly in the browser.
The output is a new PDF that should open normally in Chrome, Adobe Acrobat, and other readers when the damage is recoverable.
No. The file is processed locally in your browser.
No. qpdf can repair many recoverable structure issues, but severely corrupted files may still fail.
Yes. The result is a fresh PDF file created by qpdf, not a fake repair claim.
Yes. The tool renders a local preview after upload and before you download the output.
Related Tools
Reduce file size without visible loss.
Convert documents to grayscale.
Combine multiple pages per sheet.
Reorder, rotate, and manage pages.
Add or remove headers and footers.
Fix crooked scanned pages.