That's not a problem at all, you've misunderstood my idea. The only thing needed is an option in the context menu that converts the selected text to an "existing web-friendly renderings like JPEG, GIF, PDF, etc." by using a web service that interprets the text as LateX (or MathML). That's everything! To be fair to Dave, your original proposal was automatic conversion of '$' delimited text into LaTex generated images. By changing the requirements to a right-click option after Dave replied to you is just moving the goalposts. BTW, I do think that a user-initiated approach is better in the context of Evernote.