Why Does My PDF Say "File Is Damaged"?
A 'file is damaged' error usually means the file didn't download or save completely. Here are the fixes.
Quick answer: re-download the PDF, check the file size, and try another viewer. Most "damaged" errors are incomplete downloads, not real corruption.
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Common causes
- Incomplete download: the transfer was cut off.
- Partial save: an app closed mid-write.
- Wrong extension: a non-PDF saved as .pdf.
Fixes
- Re-download from the source.
- Open in a different viewer (browser, another app).
- If it is restricted, try Unlock PDF.
FAQ
Will compressing fix it?
No — compression can't repair a broken file; re-download first.
Is my data lost?
Usually not; a fresh copy almost always opens fine.