I"m not sure how to instruct anyone how to resize pictures, as there are so many different platforms that people use. I have a mac, and use iphoto. When I export a file from iphoto, I ask it to save the exported file as a JPEG, and say either medium or small. That usually gives me files that are less than 600MB in size. That size is fine. If you request "small", I think you get files less than 100MB .. that size is great for those of us that don't have broadband, but you can lose some detail in the pictures. Like, if someone wants to see EXACTLY how you quilted something, they may not have enough detail.