Clean and repair PDF Clean and repair PDF

Clean and repair PDF

Repair PDF structure, clean streams and rebuild the file with mutool clean.

Clean and repair PDF online

Upload a PDF and rebuild it with mutool clean to fix structural issues, broken cross-reference tables and unnecessary objects.

The service can recompress streams, sanitize content operations, remove encryption when the password is known and create a web-optimized PDF.

Use this tool when a PDF opens with warnings, behaves badly in editors or needs a cleaner internal structure.

PDF structure check and repair with QPDF

PDF structure check and repair with QPDF

Check PDF structure and compare diagnostics before and after creating a repaired copy.

Up to 256 MiB in total. Processing runs on this server in an isolated environment. Files expire after one hour.

This is an alternative to the existing PDF cleaning mode. Owner-supplied passwords are supported. QPDF does not sanitize active content or restore missing text and images.

Quick start

Repair PDF structure with goal-based settings and a file size report.

  1. Choose a PDF
  2. Select repair, compact or web preparation
  3. Download and inspect the result
✓ Processing uses server-side mutool clean, so damaged PDFs do not need to be readable by browser libraries.
✓ Garbage collection rebuilds PDF object tables and removes unreachable objects.
✓ Linearization prepares the file for faster first-page loading over the web.
✓ Password-protected PDFs can be processed when you know the password.
✓ The original file remains unchanged; the service returns a new cleaned PDF.
✓ If metadata should stay in the file, enable the metadata preservation option.

Supported formats

This tool accepts these formats. Uncommon containers and modern web formats may be normalized or converted on the server before processing.

PDF
PDF

A damaged file or a non-standard codec can still fail even when the extension is supported.

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Reviews reflect users’ experiences, not a guarantee of results or a description of the service limits. Use the rating buttons above to leave a review.

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