PDFPen Pro is ok. I’m not wild about it, because it can do some odd things with annotations, the tools can be fussy to use, and edits can make surprising change to the appearance of the document. For some reason I always find I’m fighting with PDFPen to get it to do what it’s supposed to do. I’d rather use Acrobat – which is even odder, but at least is consistent.
On the other hand, Smile does keep their apps well up-to-date and supported and responds to requests and problem tickets.
I did buy Pdfpen 7 and decided to go for the PRO version.
Not cheap but I prefer to pay for the app itself and not pay monthly like Adobe offers. Look for coupons and offers. (Only version bought at Apple Store are able to sync to iCloud Drive). I prefer nowadays to buy my apps right from the developers homepage however, then I am sure to get upgrades for a discounted price.
I asked one pre-sale question before buying and one short support question afterwards - both answered within 30 minutes on a Saturday night (!) so very happy with their support - definitely as good as DevonThinks support .
App itself very intuitive. Great instruction/tutorial videos on Smilesoftwares homepage. Played with the app for a day and I am impressed.
Works perfect together with DevonThink and is now my default .pdfviewer. Most important difference from Preview is that I can edit the pdf easy and also export it to a format that could be read by Pages, Numbers and Keynote.
I don´t have so much use for the OCR-function, prefer to use the built in ABBY in DevonThink PRO Office.
Korm mentioned that he had some quirks with the app but I have not experienced any so far.
Got the tip from David Sparky, macsparkys - same guy who did the podcast about Devonthink. He also did the video tutorials for Pdfpen 7.
I also bought Textexpander from the same company after listening to more Mac Power Users podcasts from David & Katie.
So so far I can reallyrecommend Pdfpen7.
I also bought the Take Control book - helps even if Smilesoftware has a lot of info on their home page.