How to use it
- Choose a PDF file or drop it on the box. The thumbnails of its pages appear as they come into view.
- Pick the direction: 90° clockwise, 180° or 270° clockwise (the same as 90° counter-clockwise).
- Leave every page ticked to turn the whole file, or untick pages and type the others in Pages to turn. The turned thumbnails show the result.
- Click Turn pages, then Download to keep the new file.
Turning is not redrawing
A PDF page has a rotation setting. Turning a page changes that setting and nothing else: the text, images and vector drawings are not redrawn, so the page keeps its quality and stays selectable and searchable. The turn is added to any rotation the page already has, so a page turned before is turned again from where it is.
Your PDF stays on your device
The file is read by your browser with pdf.js, the thumbnails are drawn with it and the new rotation is written with the open-source pdf-lib library. Nothing is uploaded, and the file you started with is not changed.
- Pages that are not chosen keep their own rotation.
- A page turned by 90 degrees is shown sideways in the thumbnail first; that is the result you will get.
- Bookmarks of the original file are not kept in the new file.
Example: a scanned report with sideways pages
A 12-page scan has pages 4 and 9 lying on their side. Untick every page, type 4, 9 and choose 90° clockwise. The thumbnails of pages 4 and 9 turn as you change the direction.
The new file has 12 pages; only pages 4 and 9 are turned, and the others are exactly as they were.
Frequently asked questions
Does turning a page make the file lose quality?
No. Only the page's rotation setting changes, so text stays sharp and selectable and images keep their resolution.
What is the difference between 90 degrees clockwise and 270 degrees clockwise?
They turn the page in opposite directions. 90 degrees clockwise is the same as 270 degrees counter-clockwise, and 270 degrees clockwise is the same as 90 degrees counter-clockwise.
Does a turned page stay turned in every PDF reader?
Yes. The turn is stored in the page itself, so every PDF reader that follows the standard shows the page turned.
Are my PDF files uploaded anywhere?
No. Your browser reads the file, draws the thumbnails and saves the turned copy on your own device. Nothing is sent to our server.
Sources
- pdf.js, the open-source library that draws the thumbnails
- pdf-lib, the open-source library that writes the new rotation
Figures and text last checked on Tuesday, November 10, 2026.