Repair PDF
Repair damaged PDF documents safely and quickly. Free to use online with no installation.
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Free tool to quickly repair damaged PDFs
- 1Click the 'Choose file' button to upload the PDF you want to repair, or drag and drop it into the conversion area.
- 2If needed, add multiple files or delete unnecessary files.
- 3Click the 'Repair' button to automatically analyze the PDF and fix errors. Please wait a moment.
- 4When the repair is complete, click 'Download' to save the repaired PDF file.
Key features
Fast, powerful repair
A high-performance engine quickly and accurately analyzes corrupted PDFs and restores lost data.
Unlimited free use
Use it anytime for free with no limits on file size or number of repairs.
Batch repair support
Upload multiple damaged PDF files at once and repair them simultaneously.
Secure file protection
Uploaded files are automatically deleted within 1 hour after repair and are not stored on the server.
Easy to use
Designed so you can repair damaged PDFs in just a few clicks—no expertise required.
Works everywhere
Use it on any device and browser, including Windows, macOS, Android, and iPhone.
How to recover a damaged PDF file
If a PDF won’t open or shows an error message, there’s a good chance the file is corrupted. In this situation, a dedicated repair tool can rebuild the structure and restore missing data.
This online PDF repair tool automatically analyzes the uploaded file, finds damaged parts, and repairs them. No software installation is needed—just use it in your browser. After repair, you can preview the result right away.
All uploaded files are automatically deleted within 1 hour, keeping your information safe. Restore your damaged PDF in a few clicks and get back to work.
Main causes of PDF file corruption
PDF files can become corrupted if an error occurs during download or if only part of the file is saved during transfer. Storage issues or software crashes can also break the file structure.
In these cases, the PDF may not open, or only some pages may appear.
- The file wasn’t fully saved during download or copying
- The structure was damaged due to software errors or storage problems
What a PDF repair tool does
A PDF repair tool re-analyzes the internal structure, cleans up damaged parts, and reconstructs the file into a readable form.
Perfect restoration isn’t always possible, but many files can be recovered enough to open and review the needed content.
- Rebuilds the file structure so it becomes accessible again
- Helps you view documents that previously wouldn’t open
What to check right after repair
After downloading the repaired PDF, it’s best to review it immediately. Check whether any pages or images are missing.
If needed, you can further clean up the repaired file using other PDF editing tools.
- Check for missing pages
- Verify that text and images display correctly
When PDF repair is especially useful
If an important document like a report or contract is corrupted and hard to recreate, a repair tool can be a last resort.
Even without a backup, repair may allow you to continue your document work.
- When you need an emergency recovery for an important document
- When you must reopen a file with no backup available
Frequently asked questions (FAQ)
Can all damaged PDFs be repaired?+
Results can vary depending on how severe the damage is. Some files can’t be fully restored, but many can be repaired enough to open and review.
Will the file content change after repair?+
The goal is to preserve the document content; only unavoidable parts are adjusted while restoring the structure.
Can I repair multiple PDFs at once?+
Yes. You can upload multiple damaged PDF files at the same time and repair them sequentially.
