[header] How to shrink a photo in iphoto [title] Open the photo you wish to compress. [step] Open iphoto from your finder and then select the photo you want to shrink. If the photos are not yet saved in iphoto, go to " import " under " file. 
" from here you can select the file or folder that you wish to shrink. Once they have been successfully imported, they will display in the right-hand window of iphoto.