Repair PDF

Fix corrupted or damaged PDF files instantly. Free, browser-based, no upload.

or drop PDF file here

How to do

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3 quick steps to repair your PDF.

Upload your damaged PDFs

Drag and drop one or more damaged PDF files, or click to select them. Nothing leaves your browser.

AziPDF repairs the file structure

Standard repair fixes broken cross-reference tables and invalid object streams first, automatically falling back to a more aggressive deep-recovery pass for severely damaged files.

Download your repaired PDF

Get a working PDF instantly — a single file, or a ZIP with clearly named files if you repaired several at once.

FAQs

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Answers about repairing PDF files.

AziPDF repairs PDF files directly in your browser. Your PDFs are never uploaded to a server, and all PDF repair processing happens locally on your device for maximum privacy and security.

Talk with the AziPDF AI Voice Assistant using voice or text commands. Simply describe your task, and the AI can merge, split, compress, convert, edit, rotate, and chat with PDFs for you.

Standard Repair fixes common issues: broken cross-reference tables, invalid object streams, and structural errors. Deep Recovery uses multiple aggressive passes for severely damaged PDFs that standard repair cannot fix.

AziPDF can repair corrupted PDF files, broken cross-reference tables, invalid object streams, damaged page trees, malformed trailer data, and other structural PDF errors. Both encrypted and non-encrypted PDF documents are supported.

Yes. Upload several PDFs and every file is repaired. All packaged into one ZIP archive with clearly named files per source document.

No. Everything runs in your browser with no server limits. Most devices handle PDFs up to 500 MB and hundreds of pages without issues.

If your PDF file still cannot be opened, try Deep Recovery mode for a more aggressive multi-pass repair process. If the PDF damage is beyond recovery, AziPDF will display an error message for that file.

Yes. AziPDF can recover many corrupted PDF files by repairing damaged document structures, object references, and metadata. Recovery success depends on the severity of the PDF corruption.

AziPDF is completely browser-based. Your files are never uploaded to any server. other tools upload files to their servers. AziPDF has no file size limits, no daily caps, and no watermarks.

Yes. AziPDF allows you to repair PDF files online without creating an account. There is no login, registration, subscription, software installation, watermarks, or daily usage limits.

Yes. AziPDF works on Android phones, iPhones, tablets, laptops, and desktop computers. Repair PDF files directly from your browser without installing any software.