How Rotate PDF pages works
PDF Rotate shows every page of your document as a thumbnail with its own Rotate 90 degrees button. Each click adds a quarter turn to that page alone and the thumbnail turns with it, so you see the result before downloading. Pages you never click keep their original orientation. The tool uses pdf-lib running inside your browser tab, so the PDF file never needs to be uploaded to any server or cloud service.
Rotation in PDF works by updating the rotation entry in each page's dictionary. The embedded text, images, fonts and bookmarks are all preserved exactly as they were. Because the change is metadata rather than a pixel-level redraw, the output is not a re-rasterised copy: the file stays as a true PDF with selectable text and crisp vector graphics at any zoom level. This is particularly useful for scanned documents where the scanner output alternating portrait and landscape pages, or where a single page was fed in sideways.