Use heavy cardstock or acid-free archival paper . Cardstock is sturdy enough to handle the pressure of a paw and won't curl or bleed if you use pet-safe ink.
If you are trying to capture your own pet's paw print on paper (for a keepsake or tattoo reference), the type of paper depends on your method: Paws Free Download
Use watercolor paper or thick art paper if you're using non-toxic tempera or acrylic paint, as these handle moisture better than standard printer paper. 3. "Paws" App/Software Resources Use heavy cardstock or acid-free archival paper