How to use Rotate PDF
Add your PDF. Every page appears as a preview.
Tap a page to turn it, or rotate every page at once.
Press "Save PDF" and download the result.
Questions
Is the rotation permanent?
Yes. The downloaded PDF opens with the pages turned the way you set them, in any PDF reader.
Are my files uploaded to a server?
No. Dekiko processes your files inside your own browser. They are never uploaded, so nobody else can see them, and they are gone when you close the tab.