Repair a corrupted PDF document (.pdf)
A PDF is a set of numbered objects (pages, fonts, images) plus a cross-reference table at the end that says where each object starts. When a PDF is cut short, that table and the end-of-file marker are lost, so readers think the file is empty — but the pages before the cut are usually still there.
What our repair does
- Remove junk data before the PDF header
- Rebuild the cross-reference table and end-of-file marker
- Recover a missing document catalog and re-link orphaned pages
- Cut away half-written data at the end
The check and preview are free. The repaired file costs $4.99.
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Free check, up to 50 MB. No account needed.
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Common Adobe Acrobat errors
There was an error opening this document. The file is damaged and could not be repaired.
Acrobat tried its own quick repair and gave up. Usually the cross-reference table is missing or wrong. How to fix it
Adobe Acrobat could not open the file because it is either not a supported file type or because the file has been damaged.
The file does not start with a PDF header where Acrobat expects one — the file may be a different format, or there is junk data in front of the real PDF. How to fix it
Format error: not a PDF or corrupted.
Apple Preview or another reader could not find valid PDF structure. How to fix it