Turn pages permanently, and save the result
Yes. Most PDF readers let you rotate the view temporarily, but that setting is lost when you reopen the file. This tool writes the rotation into the document itself, so every reader — and every printer — shows the pages the right way up.
Yes. Enter a page range such as 1-3, 7 to rotate just those pages, or use the odd and even keywords. Scans where alternate pages came out upside down are exactly what those keywords are for.
The rotation you choose is added to whatever the page already has, rather than replacing it. Rotating a page that is already turned 90 degrees by another 90 degrees leaves it at 180, which is what you would expect.
No. Rotation runs entirely in your browser using our own PDF engine, so the document never leaves your device. Password-protected files are the one exception: unlocking those needs a server step.