You can print free birthday cards using websites such as Greetings Island. The site offers a variety of premade templates that you can customize by adding text and pictures, and then printing your card for free.
The Printable Birthday Cards section of the Greetings Island site displays a variety of cards sorted by popularity among users. As of 2015, the top of the page offers specific categories that allow you to pick a more specific card. Categories include cards organized by gender, relationship and function, including belated birthday cards.
Click on one of the templates to begin editing the card. The card's front cannot be edited, as the front text and graphic provides a theme for the card. Examples include cards that say "Birthdays are the bomb" written in big, bright letters over a cartoonish bomb.
Click Edit Inside to receive multiple layout options for the inside of the card. These typically include layout options for the left side of the card interior, which allows you to add custom photos and text. The right side of the card is typically text related to the front of the card, but it can be manually edited, including changing the font and the letter coloring. The site also provides suggested messages to replace the existing one, once you click on the right-hand text. Finish customizing the card by placing any virtual stickers anywhere on the card and then either downloading it or printing it directly from the site for free.