Adobe DRM
Printing Pages Count Initial - Limits the number of pages you want your users to print initially. For example, you want your users to print 20 pages initially, then ten pages daily until they've printed 100.
Printing Pages Count Max - The total number of pages you want your users to print. In this example, 100 pages. Once the user prints all 100 pages, they can no longer print.
New Page Allowance Accrues Every (Days/hours) - this will limit the pages you want your users to print. For example, you want them only to print ten pages every day.
Readium LCP
Number of Pages That Can Be Printed - Similar to "Printing Pages Count Max," this limits the number of pages you want your users to print
Social DRM
The user can print your content if the device is connected to a printer.