Repair PDFPDF Tools
Repair PDF Online
Upload your PDF
PDF (.pdf) • up to 25 MB per file • max 1 file
Choose files
Validate PDF structure and attempt to recover readable objects, cross-reference tables and document structure using tolerant object reconstruction and QPDF, locally in your browser. Download a validated rewritten file when recovery succeeds. Not every corrupted PDF can be repaired.
- Structure validation
- Best-effort safe recovery
- Validated PDF download
Free, no sign-upProcessed in memory
How it works
- 1
Choose your files
Use the navy upload box to select supported files. File type and size are checked before processing.
- 2
Process locally
Start processing in your browser. Read the tool limitations and any validation messages.
- 3
Review the result
Inspect the decoded content, comparison or generated PDF before using or sharing it.
Frequently asked questions
3Can every damaged PDF be repaired?
No. Missing page data, severely truncated files and unsupported structures cannot be recreated. Recovered files must be visually reviewed. Structural validation is not a guarantee that all original content survived.
What can this repair?
Tolerant object scanning can rebuild some broken cross-reference tables; QPDF rewrites and validates recoverable PDF structure. Healthy files are reported as healthy and may also be rewritten. Encrypted files must be unlocked first.
Where is my PDF processed?
In a disposable browser worker, in memory. No PDF is sent to a server. The limit is 25 MB; very complex files may exceed browser resources.