If you drag a PDF to the Win2PDF Desktop icon, or select a PDF from the open window when launching the Win2PDF Desktop application, the following options will be displayed under the "Pages" menu:
Win2PDF Desktop - Rotate Pages Menu
Selecting "Rotate Pages..." will open the following window:
Win2PDF Desktop - Rotate Pages
Select the desired rotation amount and page range, and click OK. You will be prompted to save a new PDF with the rotation applied.
The rotation is absolute, not relative. If a page is already rotated by 90 degrees, rotating the page again by 90 degrees will have no affect.
This is also available using the ROTATEPAGES command line.
This feature requires a licensed version of Win2PDF. Contact firstname.lastname@example.org for a time limited evaluation license.