As with other stamping, use a stamp pad or acrylic paint for stamping on paper.
From the freep.com
I've told her no stamp pad, no paw prints, no ceramics, no whatever she has in mind.
From the tennessean.com
These dots were applied by the wire operator by touching the eraser of his pencil on a red stamp pad.
From the ocregister.com
I re-inked it myself using stamp-pad ink but found that printed addresses always shone through even after being stamped over.
From the gazetteherald.co.uk
Its procedure requires a check casher to place his thumb on a stamp pad soaked in a clear, nonsticky liquid, then press it against an oval gummed label attached to the back of the check.
From the time.com
For PPI mail this involves either a simple rubber stamp and an ink pad, or a printed label.
From the en.wikipedia.org
Letter boxing is a family pastime in which people use clues to find hidden boxes that contain an ink pad and stamp.
From the charlotteobserver.com
Inside are a rubber stamp, an ink pad and a notebook filled with imprinted marks and messages left by people who discovered the box earlier.
From the time.com
Then Rinker removed a large rubber stamp from a brown paper bag, along with an ink pad.