Load the paper into your printer's tray and select the proper paper format from the printer's menu.
Download the PDF file.
Open the file in Adobe Acrobat or another PDF viewer software
Go to File --> Print. Make sure the paper size is set to "Fit" to ensure the entire document fits on the page.
Make sure your printer settings are set to the best quality.
Press the print button.
Fold the card in half horizontally and then fold it again vertically.
Trim any excess paper off the top and right side with a paper trimmer or scissors, if desired.
Write a personalized message inside the card for the recipient (optional) and sign it.
Put it in an envelope (optional).