A: In many cases, digital images are the same camera-ready artwork that is used to create rubber stamps. Having the artwork in a digital format allows it to be resized, flipped, layered, digitally colored, digitally cut, and altered. You can print them on any paper that your printer will accept - I usually use cardstock, Canva-Paper or watercolor paper depending on the coloring medium I want to use. Most printers will accept at least lightweight cardstock, and watercolor paper is available in 90# weight. I print and let the ink cure at least overnight before coloring with Copics or watercolors. There are many sources for digital stamps - we've got a forum dedicated to them
HERE.