I have paid outrageous amounts of money over the years on the purchase price and upgrades from Acrobat 6 through to XI. Acrobat XI was the killer. Locked toolbars and unable to adjust to high resolution screens. The final straw was ending support in October, 2017, and encouraging people, once again, to pay substantial amounts of money for Acrobat DC. Setting aside the requirement that I would have to keep a door open to their cloud, the DC UI was a geek nightmare. Once again, locked, and a design that looked more like the kind of web page that scares you off before you fully load. I have put PDF-XChange through its paces and am well pleased. Much of the work that I do involves rather bad scans of academic journals and your OCR has come through with very few errors. The interface is clean and well designed and even though I am a classic UI kind of guy your ribbons are tempting and I may well migrate. Finally, I appreciate that you have a Canadian base just up the coast from my family in Victoria. Nicely done!