Hi Audrey

The viewable dimensions are 7 3/8 x 9 3/4. I sit mine on the music rack with stand holder through the wire and twisted upward to secure it. Some use velcro. The MPP can be oriented up and down, or in Portrait mode(on it's side). The type depends on the size of the scan type. There is a zom feature and fit to size. My eyes are getting old and I don't have a problem. Bob Hendershot has a way of enlarging, also.

The footpedal I have was bought with the system. However, any pedal that is normally closed will work if it's stereo and can be adapted to and 1/8 hole. One ring is forward, and the other backwards. You need two to go in both directions. I would try yours with an 1/4 to 1/8 adaptor or buy a Boss FS-5US, or theirs.

Joan, you certainly do owe it to yourself.

Cheers
Bernie