OPTIMIZE PDF
Free Repair PDF online
Fix broken or corrupted PDF files.
Repair PDF on DocTools helps you fix broken or corrupted PDF files, with no account needed. Add your PDF, adjust the Repair PDF options if you need to, then download the result immediately. Repair PDF runs locally on your device, so nothing is uploaded to a server.
- Free to use
- No signup
- No uploads
- Works offline
Why use Repair PDF
- fix broken or corrupted PDF files without installing software
- Your PDF is processed on your device by Repair PDF, never uploaded
- Repair PDF needs no account, email address or payment details
- Repair PDF is batch-friendly: reuse it immediately on the next file
- Repair PDF is keyboard accessible and screen-reader friendly
- Repair PDF is free forever, with no watermark on the result
Repair PDF runs entirely inside your browser. Your PDF is never uploaded, stored or shared, and nothing is retained once you close the tab.
How to use Repair PDF
- Add your PDF Drag your PDF onto the drop zone or pick it from your device.
- Adjust the options Set the options that control how Repair PDF handles your input.
- Process it Repair PDF works instantly on your device, with no queue and no upload wait.
- Download the result Save the finished file straight to your device, then reuse the tool as often as you like.
Benefits
Private by design
Your PDF stays on your device while Repair PDF works. Repair PDF never sends it to a server, so confidential work stays confidential.
Instant results
There is no upload step, so Repair PDF starts the moment you add your PDF.
No signup, no limits
Use Repair PDF as many times as you want. Repair PDF asks for no account, adds no watermark and keeps no paid tier gating the output.
Works offline
Once the page has loaded, Repair PDF keeps working without a connection, which helps on flights and locked-down networks.
Who it is for
For students
Students use Repair PDF to hand in coursework without installing software: fix broken or corrupted PDF files on a shared or locked-down machine.
For freelancers
Repair PDF helps freelancers send client deliverables quickly, since your PDF never leaves the laptop it was created on.
For legal and finance teams
Repair PDF helps legal and finance teams handle sensitive documents quickly, since your PDF never leaves the laptop it was created on.
How it works
Repair PDF loads your PDF into memory, applies the change you requested to the underlying data rather than to a screenshot of it, and writes a fresh copy for download. Your original stays untouched on disk, and every step of Repair PDF happens inside your browser sandbox.
Frequently asked questions
Is Repair PDF free to use?
Yes. Repair PDF is completely free with no account, no trial and no usage cap. Every feature on this page is available on the first visit.
Does Repair PDF upload your PDF to a server?
No. Repair PDF processes your PDF inside your browser, so it never reaches a DocTools server. That also means the tool keeps working if your connection drops mid-task.
Is there a file size limit?
The practical ceiling is your device's available memory rather than a server quota. Files up to roughly 100 MB work comfortably on a typical laptop in Repair PDF.
Do I need to install anything to use Repair PDF?
No installation is needed. Repair PDF runs in Chrome, Edge, Firefox and Safari, on desktop and on mobile, with no extension or plugin.
Can I use Repair PDF on a phone or tablet?
Yes. The Repair PDF interface adapts to small screens and supports touch input, though very large jobs are faster on a desktop browser.
What happens to your PDF when I close the tab?
It is discarded. Repair PDF keeps everything in temporary browser memory, so closing the tab removes every trace of the session.
Related tools
- Merge PDF | Combine multiple PDFs into one document
- Split PDF | Separate a PDF into individual pages
- Remove Pages | Delete unwanted pages from your PDF
Last updated: 2026-09-07