Re: and how can i get adobe photoshop?
adobe reader is used to read documents for files (.pdf)., in the same manner as msword is used if the document is .doc.(if it was written in msword)
And why pdf? because size is compressed and is smaller.
Photoshop is another, it has nothing to do with adobe reader. Photoshop as the name implies, deals with image editing. Adobe reader is free and sometimes you are automatically alerted top download it if you do not have it and the document you are opening needs it. for Photoshop, there is a trial version that is free. Try to visit their site, you will be surprised there are still many other programs, very advanced and complicated, though.
hope this helps