Hello all, really new here and to editing photos in prep for printout at the proper size. I have done quite a bit of photo tweaking before, but never in an attempt to print it out as a 5x7, or whatever. What I am confused about, is if I have a jpeg that has a pixel/inch count of 72, does that mean anything when it is printed? Or is the output printed size of the photo dependent strictly on the size of the jpeg (say 2400x3000) and the dpi the printer is set to (like 300?) I am kinda baffled as to what that image resolution of 72 even means. Thanks in advance!