Hi,
I have a picture that I want to print as a 8 1/2 x 11. How do I prepare it in photoshop for printing? The current image size is (W) 3504 (H)2336. Any help would be appreciated. Thank you.
I suggest you start with this tutorial and then see if you have more questions.
Sometimes the preparation depends on how you are going to "print" the image -- the techniques for photo printers, inkjets, and offset presses are quite different.