For me the PDF import and export already works well enough: it's been years since I printed a PDF form just to fill it, sign it and then scan it to email it back. I just open the PDF in Inkscape, fill it with the text tool, insert à JPG of my hand signature, save it, and send the resulting PDF back. The administrative efficiency I gained with this technique is gigantic, especially because I don't have to wait to have access to a printer and a scanner to do such things anymore.