Pro · Business · Enterprise · Files deleted after 1h

Repair a corrupted
PDF that won't open.

"The file is damaged and could not be repaired." We rebuild the PDF's broken internal structure and write you a clean, working copy — so it opens, prints, and renders again.

Repair my PDF →

Available on Pro (€9.99/mo), Business (€49.99/mo), and Enterprise. EU-hosted, files deleted after 1 hour.

✓ Rule-based, with a security bonus: repair is purely structural — we rebuild the cross-reference table and object graph and rewrite a fresh file (no AI, nothing leaves the server). While we're at it, we strip the classic auto-run malware vectors — document-level JavaScript, OpenAction and automatic actions — so the repaired PDF is actually safer than the original.
⚠ Best-effort, not magic: most "damaged" PDFs have a broken index but intact content, and those recover cleanly. A file whose actual page data was lost or overwritten can't be fully reconstructed — no tool can invent missing bytes. Always open and check the repaired file before relying on it.
Rebuilds broken structure
Damaged cross-reference tables, dangling object references and truncated indexes are the most common cause of "can't open" errors. We reconstruct them and rewrite a valid file.
Strips auto-run scripts
During repair we remove document-level JavaScript, OpenAction and automatic actions — the vectors malicious PDFs use — so what you get back is clean.
Private & secure
Every upload is virus-scanned, processed in the EU over HTTPS, never shared, never used for AI training, and permanently deleted within 1 hour.

How it works

1
Upload the damaged PDF
Sign in to your Pro / Business / Enterprise account, open the "Repair PDF" tool, and drag the file in — even if your reader refuses to open it.
2
We rebuild it
Our engine reconstructs the file structure (and falls back to a second engine if the first can't parse it), then rewrites a clean, optimised copy.
3
Download the working PDF
Open it, check the pages are all there, and you're done. If the file was too damaged to recover, we tell you — no silent half-fix.

What it can and can't fix

✅ "File is damaged and could not be repaired" on open

This classic Acrobat/Reader error usually means a broken cross-reference table or a malformed trailer — the index that tells the reader where each object lives. That's exactly what we rebuild.

✅ Files that download/transfer incompletely or get re-saved badly

Interrupted downloads, buggy "export to PDF" tools, and broken email attachments often leave a structurally invalid but content-complete file. These recover well.

✅ PDFs that open but won't print or render some pages

Rewriting the content streams and pruning broken objects frequently fixes pages that show blank, throw rendering errors, or jam a printer.

❌ Files where the actual page data is gone

If a file was truncated mid-page or overwritten, the bytes for that content no longer exist. We recover everything that's still in the file, but we can't invent data that isn't there.

❌ Password-encrypted PDFs you can't unlock

If the file is encrypted and you don't have the password, we can't read it to repair it. Remove the protection in your PDF reader first (with the password), then repair.

Is there a file size limit?

Pro users get 500 MB per file. Business users get 5 GB. Repair is fast — most files process in seconds.

Can I repair PDFs through the API?

Yes. Send the file to /api/v1/convert with op=repair-pdf. See the API docs for the full request format.

Related tools
OCR scanned PDF Redact PDF Fix broken CSV Repair Office file Remove PDF watermark PDF → PNG Word → PDF