The worst part of this job is that it takes a lot of time to complete all the steps and I think I found a nice free screen capturing software with the name MWSnap which can optimize this process.

Four different ways of creating screenshots are supported by MWSnap: Fixed Rectangle, Any Rectangle, Window / Menu or Full Desktop. The Any Rectangle method is working best for my purposes.

I can draw a rectangle around the part of my screen that I want to capture, fine tune it with the cursor keys and the comfortable zoom feature, and left-click when I’m done to capture the rectangle.

The Fixed Rectangle captures rectangles of a predefined size that you specify. This is useful if you want to take a series of captures that should all have the same size. Window and Desktop mode should be self explanatory.

Hotkeys can be used to speed it up further, CTRL + Shift + A would be a shortcut for Any Rectangle for instance. MWSnap provides the user with additional functions, a ruler and zoom function for instance that make it possible to create precise screenshots.

Images can be saved in a number of formats including jpg,gif and png with the possibility to select the quality level of the saved image.