We're using Macs. When U open an image, Preview gives U tool choices. Don't know from Windows, but there must be something similar…?
Pick what U need, the dimension w/lines, rectangles, etc…, add whatever text & background & surrounds u need. Another tip which they don't tell U is that U can c/p images onto Ur opened subjects. Naturally, U then need to screen cap them, but a that's all good. Use the tool 2 "adjust color" to re-clarify Ur image when U format it.