How to use this tool
- Select PDFs, up to 20 files, 50 MB and 20 pages each.
- Try structural rewriting; optionally allow image recovery when rewriting fails.
- Download recovered copies and inspect every page against your source.
Optimize PDF
Repair PDF
Try to recover readable PDF content and rewrite its structure on your device.
- ✓Local processing
- ✓No sign-up
- ✓Files never uploaded
Local processing
Repair PDF
No sign-upFiles never uploaded
Drop files here or choose from your deviceUp to 50 MB per file
Selected files
Files never uploaded
Working…0%
Your result
What this tool does
The tool checks pages with PDF.js and rewrites readable documents with pdf-lib, rebuilding cross-reference data. Missing page data cannot be invented. Optional image recovery preserves rendered pages but loses selectable text, links, forms and digital signatures.
Your files stay with youDocument processing runs locally in your browser. We do not receive, store or inspect the files you select.
How to use Repair PDF safely
Try to recover readable PDF content and rewrite its structure on your device. Work on copies and retain the original documents. Files stay on your device; batches are processed sequentially to reduce memory use.
The tool checks pages with PDF.js and rewrites readable documents with pdf-lib, rebuilding cross-reference data. Missing page data cannot be invented. Optional image recovery preserves rendered pages but loses selectable text, links, forms and digital signatures. The operation runs on your device: HugPDF does not send the document, its contents or a password to a processing server. You can keep the source file and inspect the new copy before sharing it.
It works in modern desktop and mobile browsers. Processing time depends on the file size and your device, so keep the page open until the download is ready and review the output before relying on it.
For the best result: Review the output before sharing. Use smaller batches on phones. The preview is a guide, not a guarantee that every source detail can be recovered.
FAQ
Frequently asked questions
Can every damaged PDF be repaired?
No. Truncated or missing content, unreadable page objects and encrypted PDFs may be unrecoverable. The tool reports failure instead of claiming a repair.
What does structural repair do?
It rewrites objects that can be parsed into a new PDF with regenerated cross-reference information. It cannot reconstruct missing original bytes.
What is image recovery?
With your permission, pages that PDF.js can render are saved into a new image-based PDF if structural rewriting fails. Searchable text and interactive features are not retained.
Does success guarantee that nothing is missing?
No. A damaged document may already be missing content. Review all recovered pages and retain the original.