Spindling or spiking was the act of spearing a paper document onto the spike.

The holes in the punched pockets dispose of the difficulty of making holes in a paper document.

Each individual has a number, formerly printed on a paper document but now on a blue plastic credit-card-sized card.

The signature can also have a visual representation as a form field, just as it might on a paper document.

There aren't many paper documents that the law still requires you to keep.