Remember to leave a bleed of 1/10th (0.1″) around all edges, and to keep any text and crucial design elements at least 1/8″ (0.125″) away from the finished edge of the card.
The finished size of a greeting card is measured with the card folded in half, so your document size will be double that, plus 0.2″ for bleeds.
|Finished Size||Document Size with Bleeds|
|4.25 x 5.5||8.7 x 5.7|
|5 x 7||10.2 x 7.2|
|8.5 x 5.5||11.2 x 8.7|