I created a book cover in Libre Office Writer at a page size of 12.92" x 9.25". I could not get doPDF to create a PDF with that exact size. I set the page size in printer properties under print setup, but when I went to print -- that size wasn't available. There were a number of other user-defined sizes shown -- most of which I don't remember ever having used -- but the size I wanted wasn't available.
What am I doing wrong?
For what it's worth, I am using doPDF7.
Before saving the PDF, click on Printing Preferences to open doPDF's print options. In there under Page Size - select Custom and set the exact PDF size you want. Save the PDF after that, the new size should be correct now.