Vampi opened this issue on Sep 05, 2007 · 24 posts
Arien posted Thu, 06 September 2007 at 4:16 PM
Bagginsbill: no, it doesn't work if you're creating work to go into a professional printer. If you render a 600x800 pixels image, and you send that to a printer to go into your Christmas Cards that are sized 5"x7 1/2", the printer will send it back after he stops laughing. What photoshop is doing in that image of yours is just resizing the image on the fly and bypassing the settings; but to generate the initial image size (the 100% size print) it will use the ppi value stored in the image itself unless you change it. For good quality printing you need at least 300ppi; for home usage you might get away with 150 ppi but less than that and the image quality will suffer. When you've got very big images that are being sized down -as in your example- this doesn't matter too much, but it's critical if it's the other way round. Also, your method of resizing on the fly is also bypassing adjustments that might be necessary when resizing images to get the better results.
Vampi: try what everybody else is telling you. Render at the desired and correct pixel size, save, and change the ppi in a paint program, without altering the actual pixel size. That's what I do for the pieces for print I make.