Printing on absorbent and porous surfaces is no problem for Reiner’s handheld inkjet printers, electronic stamps, and numbering machines. With advanced quick-drying ink, Reiner’s entire line of numbering machines print on paper, cardboard, and any other absorbent surface quickly and easily. Plus, several of Reiner’s handheld inkjet printers print on curved and uneven surfaces, including groups of documents, paper-based bottle labels, and more.