Hands down the best screenshot app on the mac
Annotate is the best screen capture app for the Mac, and I’ve tried quite a few. Ive been a supporter since Annotate was known as Glui and Ive seen it steadily improve with each update. Also, the developer is very responsive. I had some issues with pasting and dragging screenshots into Photoshop and within a month he had an update released to the app store that fixed the issue. I highly recommend you check out Annotate if you do a lot of screenshot and annotation work.
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Annotate - Capture and Share