Straighten tilted scanned pages
Fix crooked scans automatically. Your document stays on your device.
- Your files are never uploaded
- Processed on your device
- Works offline
- Free, no sign-up
Drop your PDF files here
PDF files · up to 10 files, 500 MB each
or paste with Ctrl+VLive preview
Settings
No settings needed. Each page's tilt is found and corrected (up to 10°).
Nothing is uploadedHow it works
Add your scanned PDF
Pages that came out slightly crooked.
Straighten
The tilt of every page is measured.
Download
The note lists the pages that were turned.
Automatic tilt detection
The tool looks at the lines of text on each page and finds the angle that makes them level, up to 10 degrees. Straight pages are not changed.
Pages are turned as a whole, without turning them into new pictures.
Private
Your file is processed inside your browser with PDF.js (Apache-2.0) and pdf-lib. It is never uploaded, and nothing is saved after you close the page.
Questions
Are my files uploaded?
No. The tool runs inside your browser, so your files are opened and changed on your own device. They are never sent to us or to anyone else.
Does it work on pages without text?
It needs some lines, such as text or table rules, to measure the tilt.
Is it free?
Yes. Free to use, with no sign-up, no watermark and no daily limits.
Related tools
More free tools that run on your device. No uploads