Saved rotation, not a view setting
Rotating in a viewer usually changes only how you see the page, and it resets when someone else opens the file. This tool writes the rotation into each page, so the next person (or the upload portal) sees it upright.
Nothing is re-rendered or re-compressed: the page content is untouched, only its rotation value changes, so the file size stays almost the same.
Steps
- Add the PDF.
- Rotate all pages, or select pages and rotate them.
- Check the thumbnails.
- Save and download.
Limits, stated plainly
- Scans that are slightly crooked need straightening, not rotation; scan-to-pdf does that for new scans.
Engine: pdf-lib in a Web Worker. Your file is not uploaded; check it yourself.