Originally posted by rob_smith:
I need to save images in a variety of sizes, which is the quickest way?
Currently I save as 3000, 800, 600 (pixels wide) for different uses. For each size I use the original PSD file and resize then sharpen, then save as JPEG, but going back to the original file is a pain. Do you know, if I save as a very high quality JPG (3000px), can I then resize that down to 800 or 600 without much loss of quality? Or should I use the original PSD file every time?
For all practical purposes that should be fine. If I were gonna pick nits, I'd point out that it doesn't really save you anything to do this. Your original, full-res file should be saved as a PSD anyway, right? So when you consider that each time you resize, you are adjusting the sharpening and saving-as jpg, just work like this:
1. Do all your basic editing on the PSD file and save it.
2. Now hit "image>duplicate" and you have a perfect copy. Resize and sharpen that, and save-as JPG, and close it.
3. Your original is still open: follow steps above, resizing to the new file dimensions, and close.
4. Do this for each image size you need.
In general, it's a good idea not to sharpen on top of sharpening for several generations, which is what you will be doing if you follow your original approach of progressively smaller resizings and resharpenings. But the differences, usually, will be small.