You can't add hyperlinks to a JPG as such, but can do so when inserted in a web page when the site has that feature. As far as I know, Facebook doesn't though. Try Google with Facebook image hyperlink
Thanks Trevor! I'll give that a try.
Some things copy across from other apps with hyperlinks intact. For instance you can compile a post for this forum in MS Word, which makes text hyperlinks very easily with its Ctrl k > Ctrl v feature. I'm wondering if that would work with images.
No just tried it and it failed. :-(
BTW The idea to try this came from an incident in another thread where I was typing quickly, and did a Ctrl v, quickly followed by Ctrl s. This not only pasted an image into the Reply window, but posted it to the forum as well. Those were both things I was not aware that were possible. I had to quickly delete the post, so the thread starter (about Calico Cats) will have wondered what was going on (they will have recieved email notification of a post that was not there).
Pasting images into reply windows only seems to work if copied to the clipboard from the web, and AFAICT does not work when copied from your OS.