I'm working on a little project, and want to add a "Save" button which will when clicked convert everything which is inside of a certain div class into a downloadable .txt (or .pdf or any other document viewing file type) document.

I want to note one more thing, the content of that div isn't "static" (if I can call it that), since the user / visitor can edit it, to clarify, the user / visitor can delete the text in that div, as well as add new text to that div. I'm not sure does this make any kind of difference, but there it is just as a little note.

Is this possible?