Is it possible by pressing PrintScreen button to save image as JPEG, or other format? Without going to Paint, pressing Ctrl+V...
migrated from stackoverflow.com Oct 5 '12 at 8:13
Yes, but you'll have to use some third party tool to do that in Windows.
Personally, I use this free utility: http://screencapturer.com/
You can use Greenshot. It offers you a list of actions to perform after you take a screenshot:
Alternatively, you can configure it to always use a specific action (like saving to a predefined location).