Looks like there's a new entry in the PDF editor market: FlexiPDf from SoftMaker, who are responsible for the SoftMaker Office Suite and some font collections.
I haven't tried the software so can't give any kind of review.
Introductory price is $60 (or €60) for the Standard version, $80 (or €80) for the Professional version. Webpage says those are introductory prices. I have no idea how long they might be valid for or what the pricing might be after the 'introduction'.