Is it possible to add a note to an existing PDF document using anything in the TC3 repository?
The type of thing I am after is built into the full Adobe app. It creates a small yellow icon on the document which when clicked opens a free-text box. I may be mistaken, but I have have a vague memory that it was possible using the (Windows) freeware version of Foxit Reader but cannot find a similar function in the Linux version of the present extension.