Can I design a postcard in the size 5.5 by 8.5?
Also are there any specific things I need to put besides for stamps and return address ?
They are typically 4x6 or 5x7. However I’ve received some beautifully designed postcards in the mail that have been much bigger, so it’s probably fine.
At work, I’ve done postcards 8.5x5.5. and they came out really nice.
i would ask the place you are printing re size… if you are creating many you may find a big price difference if you go non-standard…