Resizing and renaming Photos using the MAC’s iPhoto

1. Open iPhoto. 

2. Select photos you wish to rename and resize. 

3. Go to File > Export. 

4. Export Photos window will appear. 

5. Follow the settings below.

Note: For the dimension, 800 is for the 800 x 600 resolution. If your frame has a native resolution of 1024 x 768, then 1024 should be typed in and not 800. If your frame has a native resolution of 1366 x 768, then it should be 1366.

6. Select 'Sequential' for file name. 

7. Prefix for sequential: 00 (the number Zero)

8. Hit the 'Export' button.