I often need to print or download pdf presentation files from online sources which I used to do on Safari (I use imac) On Safari, the pdf presentation automatically rotates on the print page, so then I can use "save as PDF" on portrait and everything looks good. (then I just rotate the file to landscape on Preview or PDFexpert to read the presentation). When I try to do the same on Firefox, on the print page, the presentation does not rotate and remain landscape. The problem is, when I choose landscape to print, then the presentation is not centered on the page and skewed to one side so I get much wider margin on one side. Is there a way to fix this issue? I appreciate any advice or input!