Have awesome lines already drawn but are NOT ms.paint friendly?! Don't want to re-draw it? You don't have too, continue reading to learn my trick!
I may put a visual aid up later for the steps but for now, I am just going to write them down. Hopefully it will still be follow-able to try it yourself! Here Goes ::
» Open your lines in paint.
» Go to the top and select the option "Save As" (you'll get a pop-up now to select where to put it, name it and what file type)
» On this pop-up, there is a line that reads "save as type", click on that and select the line that reads "Monochrome Bitmap"
» Now save it a new file some