So then what do you suggest? I can't predict what size photos people what to print off the disc I give them... I can make them all be 8x10s but what if they want 4x6?
Cropping is about more than just print size, it's also about composition. If I crop an image at 8x10, then use the original to do a crop at 4x6, there will be elements in one crop that wont be in the other image. For instance, if you do a portrait type crop at 8x10, you may not have a lot of headroom, may have negative space on the left, and an important element in the bottom of the frame, with your subject at frame right. To crop the 8x10 for print at 4x6, you would have to loose some or all of your negative space, thus centering your subject, and you would possibly loose your element, or some/most of it at the bottom of the frame.
The two ways around this would be:
1) You, as the photographer have decided on the print size by cropping with composition in my mind, and it will be printed that size. End of conversation.
Or
2) Do two crops of each image, one at 8x10 and one at 4x6. Compositionaly they will differ slightly, but you've given the recipient the option of printing the size they prefer.
I hope this makes sense, as I'm still on my first cup of coffee and my second cigarette.
