If you're on windows go to the "Start" menu or windows icon and in the search bar type "snipping tool" and open it up then crop whatever you want from your screen and paste it into word or paint.
On a mac hit command +shift + 4 all at the same time and crop what you want. It will save a jpg on your desktop.
If you want it on your phone, back away from the computer and then use the camera to zoom in and it should minimize the lines a bit.