PDF Rotate

Scanners and phone cameras have a talent for filing pages the wrong way up. One document scans correctly, the back upside down, an attachment in landscape. On screen you then have to tilt your head, and printing it out gets properly annoying. PDF Rotate puts every page in the right orientation without you having to rescan.

The heart of it is the visual preview. Each page appears as a thumbnail rendered with pdf.js right in your browser. You immediately see which page is skewed and turn it with one click by 90 degrees clockwise or counterclockwise. Two clicks make 180 degrees for the upside-down scans.

With multi-select you mark several pages and rotate them together. Or you turn every page at once with a single command when the whole document is in the wrong format. An undo takes back each step in case you slip, so you can experiment freely until everything is right.

For the preview and normal documents everything runs locally in your browser, no upload needed. For very large files, where rendering many thumbnails would get sluggish on weak devices, there is an optional server mode that handles the actual rotation. You decide whether a file leaves your device.

The result is a PDF where every page is oriented the way it should be - readable on screen and correct in print. No watermark, no account for the local mode, no quality loss, because the rotation is stored losslessly in the PDF.