Error attaching photos as docs

While attaching photos( as docs) in requesting for electronic signature, I get error msgs all the time saying " No photo to attach" in fact, there is a photo/doc to attach and I need to take another screenshot of that pic than I can attach it.....smh... it's very frustrating especially if you are trying to send docs in rush also when copying and pasting the email address of the customer, "P" appears in the email address line and can't be paste. Does someone have an answer for it?