Sony PSP-1003 - Manual (Page 74)

74 Using the control panel
Clearing the display
Select from the control panel, and then press the button.
You can change the size of the image displayed on the screen.
1
While displaying the image, select from the control
panel, and then press the button.
Each time you press the button, the option switches as follows:
Hint
Depending on the image being displayed, the View Mode may not change.
Adjusting image size
Normal
Displays the image to fit the screen size without changing
proportions
Zoom
Displays the image at the full screen size without changing
proportions. Portions of the image at the top and bottom or left
and right are cut off.
Image name
Image number/total images
Updated
Display status