Corrupted or partially damaged PDFs sometimes fail to open or display incorrectly. PDFStream's repair tool attempts to recover what it can from the file structure, producing a new PDF that opens correctly. The repair process re-reads the file, recovers intact pages and objects, and rebuilds the PDF structure. It's not guaranteed to recover everything from severely damaged files, but it often rescues documents that are partially unreadable. Use cases: recovering a PDF that was corrupted during a file transfer, repairing a file that was truncated during a download, fixing a PDF that produces errors when opened, or attempting to recover a file from damaged storage.

How-to

1
Upload File
Select a PDF that won't open.
2
Attempt Repair
Click the repair button.
3
Download
Download the repaired PDF. Severely damaged files may not be recoverable.

Frequently Asked Questions

Can I repair all damaged PDFs?▼

Minor damage (incomplete structure, truncated files) can be repaired, but severe damage is difficult to recover.

What happens if repair fails?▼

An error message will be displayed. We recommend checking for backup files or the original source.

Is the PDF repair feature free?▼

Yes, it is free.

Is the file saved on the server?▼

No, all processing is local.

Can I use it on mobile?▼

Yes.

Is the quality maintained?▼

Yes.

Is there a file size limit?▼

No.

How long does it take?▼

A few seconds.

Can I download the result multiple times?▼

Yes, in the same session.

What if an error occurs?▼

Retry if the file is corrupted.

Last updated: June 26, 2026

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