Create a PDF file with 4 QSL card images to print and cutout yourself.
Instructions:
Create an image file of your QSL card. The image must be in a 5.5 x 3.5 inch ratio. A 300 dpi image is recommended which gives a dimention of 1650 x 1050 pixles. The image can be a jpeg, or png.
Print on a US letter sized paper. Card stock is recommended. The A4 paper size is not supported.
Using a paper cutter, cut 3.5 inches from the top to get the first row of the QSL cards. Cut again at 3.5 inches to get the second row of QSL cards. Cut each row in half at 5.5 inches.
(for shitty printers that force margins on their user - Hello Canon!)