How to Rotate PDF Pages Permanently
Scanned a document upside down? Phone took a photo in landscape mode? Andromeda PDF allows you to fix page orientation instantly and permanently save the changes.
Upload File
Drop your PDF into the tool. We support rotated scans, landscape slides, and mixed-orientation documents.
Select Rotation Angle
Choose 90° (quarter turn), 180° (upside down), or 270°. The change applies to all pages in the document.
Save New Orientation
Click "Rotate & Download". The new orientation is baked into the file structure, so it will open correctly on any device or printer.
Why Rotate with Andromeda?
Most PDF viewers let you "view" a file rotated, but they don't save the change. Next time you email it, it's upside down again. We actually rewrite the file's internal transformation matrix.
Privacy First: Fixing a sensitive legal scan? Don't upload it to a cloud server just to rotate it. Our tool runs 100% in your browser using WebAssembly.
Technical Insight: Lossless Rotation
Unlike image editors that decode, rotate, and re-compress pixels (causing quality loss), Andromeda PDF performs a metadata-only operation.
We simply modify the /Rotate key in the page's dictionary within the PDF structure. This means your file quality remains exactly 100% identical to the original, and the process is instant regardless of file size.
Common Transformations
Fixing Mobile Scans
Correct documents photographed in portrait mode that should be landscape.
Presentation Slides
Convert horizontal slide decks that were accidentally saved vertically.