I was chatting with a colleague who had to send me a document. She asked me whether I preferred a hard copy or if she could just send me the file. I wanted to say you can just send the file, but couldn't figure out whether the sentencе можно только электронную версию means what I intended (you can just send the file) or whether it means ("you MUST send the file" i.e. you are only allowed to send the file). Or is it ambiguous? If so, what's a better way of saying this? The context is informal, in an online chat. Thanks!