What errors can be repaired?

We can repair corrupt header, broken cross-references, missing objects and other structural errors.

Can all PDF files be repaired?

Most damaged files can be repaired, but severely damaged files cannot always be restored.

Why will my PDF not open?

Usually because the file was damaged during download, email transfer or storage — an interrupted transfer or a failing disk, for example. Upload the file here and we attempt to rebuild it so it opens again.

How do I fix a PDF that says the file is damaged?

Upload the damaged file to the repair tool and click Repair. We rebuild the header, cross-references and object structure — the typical causes of that error — and you download the repaired file.

Can content be recovered from a corrupt PDF?

Often, yes. Text, images and pages are recovered to the extent the underlying data is still intact. If parts of the file are destroyed, we recover what can be saved and rebuild the rest of the structure.

Is it free to repair a PDF?

Yes, PDF.dk repairs PDF files online for free. No watermark, no signup.

Is it safe to upload my PDF?

Yes, it is safe. Uploads are encrypted, processing happens in the Nordics, and files are deleted automatically shortly after. Your documents are never kept or shared.

Repair PDF

Repair damaged PDF files online for free. Restore corrupt documents.

PDF refusing to open, or showing a damaged-file error? With PDF.dk you repair corrupted PDF files for free right in the browser. The tool rebuilds the file structure and recovers the content that can be saved. Your files are processed in the Nordics and then deleted automatically.

Frequently Asked Questions

What errors can be repaired?: We can repair corrupt header, broken cross-references, missing objects and other structural errors.
Can all PDF files be repaired?: Most damaged files can be repaired, but severely damaged files cannot always be restored.
Why will my PDF not open?: Usually because the file was damaged during download, email transfer or storage — an interrupted transfer or a failing disk, for example. Upload the file here and we attempt to rebuild it so it opens again.
How do I fix a PDF that says the file is damaged?: Upload the damaged file to the repair tool and click Repair. We rebuild the header, cross-references and object structure — the typical causes of that error — and you download the repaired file.
Can content be recovered from a corrupt PDF?: Often, yes. Text, images and pages are recovered to the extent the underlying data is still intact. If parts of the file are destroyed, we recover what can be saved and rebuild the rest of the structure.
Is it free to repair a PDF?: Yes, PDF.dk repairs PDF files online for free. No watermark, no signup.
Is it safe to upload my PDF?: Yes, it is safe. Uploads are encrypted, processing happens in the Nordics, and files are deleted automatically shortly after. Your documents are never kept or shared.

How to

Upload your damaged PDF file
Click "Repair PDF"
Wait while the file is analyzed and repaired
Download your repaired PDF