How do I find out the file size of my photos, and change them to the size

Click on the Info button lower left (the wee 'i') and on the resulting Info Pane you'll get the dimensions and the file size.

To resize a photo: Select the pic in the iPhoto Window and go File -> Export. In the resulting dialogue you will have the options to resize the photo.

Regards

TD

If the limited quality options do not get you the file size you need export the full size image files to a folder on your Desktop and use Resize! to batch resize the image dimensions and file size (jpeg compression level) to what you need.

Click to view full size

With Resize! you can fine tune the pixel dimensions and file size.

OT