What kinds of corruption can be repaired?

Damaged xref tables, truncated downloads, partial uploads and broken cross-reference streams. Severely re-encrypted or shredded files may not be recoverable.

Will repair recover content from a truncated download?

Only what's already in the file. If the bottom half of the PDF never finished downloading, that data is gone — repair can't invent it. Re-download the original first.

Does repair change the visible content?

No. Repair rebuilds the structural index of the PDF, not the page contents. The pages render exactly as the author intended.

My Repair PDF job is stuck on "processing".

Refresh the page and try again. Browser-side processing depends on your device's CPU and RAM, so closing other tabs usually helps.

The downloaded file looks different from the preview.

Clear your browser cache and re-run the job. Outdated cached fonts can occasionally cause rendering glitches. If the issue persists, email us a sample to help@pdfwix.com.

Can I undo a Repair PDF operation?

Your original file is never modified — PDFWix always produces a new file. Just discard the new version and start again with the original.

How to Repair PDF: A Step-by-Step Guide

Rebuild a broken PDF and recover readable content. Free and browser-based.