Gotta say Paint.net is a great bit of kit!
One thing I have been looking for in such software is a tool that works just like a CAD dimensions tool. You know, the one that puts in the arrows, lines and dimensions on a tech drawing. You select the tool, click at the start point and drag it out to the end point. You then edit the default dimension text.
Would it be possible to create such a tools as a plugin for Paint.net? Would you be willing to add it to your software?
It would be ideal for eBay sellers.
Thanks