The panel on the right is used to type your message, select fonts, font sizes and to arrange the text within the print area (the dotted box). The left side of the window is the print area and shows you a preview of how your message will appear when your card is printed. For best results keep text within this dotted area.
Select a font and font size you like. Depending on how long your message is start with a smaller font size and go from there.
If you wish, you can space out your message to fill the print area ensuring that the message doesn’t fall outside of the white print area. Use the text alignment to position the message on the left, right or centrally in the print area.