1, the front of the postcard can be customized into a photo style, and the back has a letterhead function, so you can write what you want to say. Photos can only be used for viewing, not writing, and it is easy to rub flowers and affect the appearance.

2. Postcards have become a medium for artists to subvert and innovate, which is more collectible, and the photos are more ordinary, less outstanding and less collectible.