Right click on the ShareX tray icon again, click on “After Capture Tasks” and click “Add image effects/watermark” to enable.Make sure the Torn Edge and Shadow Boxes are checked, type the name “Torn Edge with Shadow” in the name text box in the top right, and click “Export” to export the settings to backup.If you’d like, experiment with the settings until you get the torn edge look you want. Set those settings to Opacity 0.2, Size 10, Darkness 2, Color 165, 154, 154 (grey), and offset 5.0: Click “Add” again, then “Filters”->”Shadow”.Set the Depth to 8, Range to 5, Sides to Bottom, Right, and Curved Edges to False: On the dialog that appears, click “Add”->”Filters”->”Torn Edge”. Click the “Image effects conafiguration …” button.This will allow you to turn off the effect for a particular image: Check the “Show image effects window after capture”. On the Task Settings dialog, click “Effects” under “Image”.Right click on the tray icon, select “Task Settings”.

It took me awhile to figure out how to achieve the effect, and then some more time to figure out how to automatically apply it after a capture. I wanted to have screen captures automatically add a “torn edge” effect to a screen shot similar to what Snagit can do easily.

ShareX is packed with features but not very user friendly. ShareX is a great free and open source screen shot tool that rivals TechSmith’s Snagit.

Sharex screenshot button not working