Rebuild a damaged PDF document

This operation helps anyone facing a file that no longer opens or shows errors shortly before an important submission.

Recover a damaged or unreadable PDF by rebuilding its structure, then download a version that can be opened and used again normally.

How to use

Pick the damaged PDF that will not open or keeps showing error messages.
Start the repair and let the file go to YOORfree's computing server for analysis.
Wait while the document structure is rebuilt during the operation, which may take a moment.
Download the repaired PDF if the tool manages to create a readable file.
Open the result in your usual reader and check the pages, text and main sections.

Example

A student has to submit a thesis before midnight, but the PDF stops opening after a crash. The repair process rebuilds the file structure, and the student checks the document quickly before uploading it to the submission portal.

Limits and formats

Repair cannot recreate pages or data that have completely disappeared from the file.
A strongly encrypted or password-protected PDF may remain inaccessible.
Review the result: images, fonts or annotations can be missing after reconstruction.
One PDF is processed at a time, and other formats are not accepted.
If the file is too badly damaged, the tool may fail without producing a usable PDF.

Where processing happens

This task runs on YOORfree's computing server. Your PDF is uploaded, processed in memory without disk writing on the gateway, then removed. The file and the repaired result are kept for at most 15 minutes by default on the web server before deletion. File names and contents are not logged, and no third party takes part.

Frequently asked questions

What does the repair actually do?

It rebuilds the PDF structure to try to make the document open again. It is not a backup: if pages or resources are truly gone, the tool cannot invent them back.

How long is my uploaded file kept?

The uploaded PDF and the repaired result stay for at most 15 minutes by default on the web server, then they are deleted. Processing on the gateway happens in memory, without disk writing, and contents are not logged.

Why can the result differ from the original?

Rebuilding can change some internal elements. Check important pages, images and annotations to confirm the document is still usable before you send or archive it.