You can rotate desired pages in the PDF document and save as a new file. Available rotation angles: 90, 180 and 270 degrees.
Go to the "Operations" section of the program, and choose "Rotate Pages" item. If you want to process all pages, choose the "Process all pages" option. If you want to process specific pages, choose the second option, and enter the page range.
For example: 1, 2, 6-8. Then choose the angle of rotation.
When ready, click the "Rotate" button to start the process.