Repair PDF
Repair corrupted or damaged PDF files online for free. Fix PDF files that won't open and recover their pages, one file or several at once.
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How to Repair a Corrupted PDF File
PDF won't open? ToolifyPDF is a free online PDF repair tool that fixes corrupted and damaged PDF files right in your browser. It rebuilds the internal structure that PDF readers need to open a file, such as a broken or missing cross-reference table, and recovers every page that is still in the document. It's ideal for PDF files damaged by an interrupted download, an email attachment, or a failed transfer. Repair up to 30 files at once, with no software to install and no account needed.
Fix PDF Files That Won't Open
Rebuilds broken or missing cross-reference tables and damaged trailers, and removes junk data in front of the PDF, the most common reasons a PDF reader says a file is damaged.
Recover Your Pages
Recovers the text, images, and pages that are still in the file, even from incomplete downloads. Repair up to 30 PDF files in one go and download them in a ZIP file.
How to Repair a Damaged PDF
- Select Files: Click "Select Files" or drag and drop your corrupted PDF files into the box.
- Add More: Add more damaged PDF files if needed, up to 30 files of 200MB each.
- Repair: Click "Repair PDF" to rebuild your files.
- Download: Click "Download" to save your repaired PDF. Several files are downloaded together in a ZIP file.
Repair PDF Files on Windows, Mac, iPhone, and Android
ToolifyPDF works in any modern browser. You can repair a corrupted PDF on Windows, Mac, Linux, iPhone, iPad, or Android without installing software. It works in Chrome, Safari, Firefox, and Edge.
Why Repair PDF Files with ToolifyPDF?
Unlike PDF repair software that you have to download and install, ToolifyPDF repairs damaged PDF files online from any device, anywhere. Our free PDF repair tool is perfect for:
- Fixing PDF files that show a "file is damaged" error when you try to open them
- Recovering PDF files from interrupted downloads or failed file transfers
- Repairing corrupted PDF email attachments
- Fixing PDF files that other PDF tools refuse to open, merge, or convert
- Rescuing important documents such as contracts, invoices, and school work
FAQ
How do I repair a corrupted PDF file?
Upload the corrupted PDF, click "Repair PDF", and download the repaired file. The tool rebuilds the file structure and recovers the pages that are still readable, so the PDF opens normally again.
Is this PDF repair tool free?
Yes. ToolifyPDF is completely free with no sign-up and no watermark. You can repair up to 30 PDF files at once, up to 200MB each.
Why won't my PDF open?
Messages like "The file is damaged and could not be repaired" or "Failed to load PDF document" usually mean the file's internal structure is broken. This often happens when a download is interrupted, an email attachment is corrupted, or a file is not fully copied. Repairing the PDF rebuilds that structure.
What kind of PDF damage can be repaired?
The tool fixes broken or missing cross-reference tables, damaged trailers, wrong object positions, and extra data before the start of the PDF. These are the most common types of PDF corruption.
Can I repair a PDF that was only partly downloaded?
Yes. The tool recovers all the pages that made it into the file. Pages that were never downloaded are not in the file, so they can't be restored. If you can, download the original file again.
Can every corrupted PDF be repaired?
No. If part of the file was overwritten, the file is empty, or it isn't really a PDF, there is nothing left to recover. In that case you'll see a message saying the file couldn't be repaired.
Can I repair multiple PDF files at once?
Yes. You can repair up to 30 PDF files at once. A single file is downloaded as a PDF, and several files are downloaded together in a ZIP file. If one of them can't be repaired, you still get the others, and a message tells you which file was left out.
Can I repair a password-protected PDF?
Yes. When you add it, you'll be asked for its password. The repaired PDF is saved without the password, so use Protect PDF afterwards if it needs to stay protected.
Will repairing change the content of my PDF?
No. Repair rebuilds the file's structure and keeps your text, images, fonts, and page order. Only content that was already lost from the damaged file is missing.
Do I need PDF repair software?
No. ToolifyPDF repairs PDF files online in your browser, so there's nothing to download or install. It works on Windows, Mac, Linux, iPhone, and Android.
Advanced Features
Our online PDF repair tool uses several recovery methods to fix your files:
- Cross-Reference Rebuilding: Rebuilds broken or missing cross-reference tables and trailers so PDF readers can find every object.
- Header Cleanup: Removes extra data in front of the PDF that stops it from opening.
- Partial Recovery: Recovers the pages that are still in incomplete or truncated files.
- Multiple Repair Methods: If the first method fails, the tool automatically tries other recovery methods.
- Batch Repair: Repair up to 30 PDF files at once and download them in a ZIP file.
💡 Pro Tip
If a PDF stopped opening right after a download, try downloading it again first: the original file may simply be incomplete. If that doesn't help, repair it here. Once your PDF opens again, you can edit, merge, or convert it with our other tools.
Privacy & Security
We take your privacy seriously. All file uploads and processing happen over encrypted HTTPS connections. Your files are automatically deleted from our servers after one hour, and we never store or share your documents with third parties. You maintain complete control over your data at all times.
Ready to repair your PDF?
Start repairing your corrupted PDF files now. It's free, fast, and no sign-up is required.