I'm creating a PDF for print as a poster. I've tried several times saving my Photoshop PSD image as a PDF yet no matter what options I select (High Quality, X1A, etc. it always downsizes the resolution. I have turned off compression and everything else. I can't figure out why. I've pasted the file info from the "Get Info" option on Mac's Finder. The resolution is 1314x1746 px yet the image is 5475 x 7275px when I look at the PSD file in Photoshop.