Have only had this a week, and I am just thrilled with how well it works. Along with the free coapp, it is head & shoulders above everything else I've tried -- and I've tried a lot. And easy to use for such a capable extension. I haven't encountered the watermark some people complain of. From some of the (too-few) *level-headed* reviews I've seen on the web, the watermark is apparently triggered when the format conversion function is needed. Well I haven't needed that yet, but if I do I will happily pay the reasonable life-time license fee to renew it. In fact, I'll probably buy a license regardless, just as thanks. A bargain for the most useful add-on I've discovered in a long time. THANK YOU to the developers.