I am really new to printing photos and selling them. Haven't done much since film days. I have been thrown in at the deep end with people wanting to purchase photos so have done a heap of reading and trying to get it right.
My problem is selling images when the res is too low for a certain size print.
But now the I have one that is a couple inches too small. How do I know what is the smallest res I can use and the photo still look alright? A couple of my images have been 3 - 5mb to start with but I have had to crop them out a fair bit and brought the size down to 620kb. Is there a way of increasing the res?