How to crop with straight lines

[Dryvlyne]

Whenever I take a screenshot and then try to use the crop tool it only let's me do a free-form selection. How can I make it crop as a full square or rectangle?

 

[ScorpionKing76]

I am looking for an answer to this as well. If you learn anything could you post it here please?

 

[ph3nom]

looking for this too. the only way only is through photo editor

 

[happymetal]

I have same problem didnt find any way crop the screen shot not in free form. Anyone can help?

Thanks