Enjoy creating memorable cards and invitations, without robbing you of precious 'family and friend' time. The Peppermint Holiday Card set contains both .png and .pdf files for each image. You'll find greeting cards that are ready to send, as well as cards just waiting for your family photos. If you prefer to add photographs digitally, you'll find the .png files are a snap to use, thanks to the transparent photo boxes. Just drop in your favorite pictures, and print. Create festive invitations in minutes, and then it's on to the rest of the items on your To Do list. For an easy reference to matching cards with envelopes, take a look at the .pdf envelope files--each one will tell you which card it works with.