Library Ownership & Due-Date Stamp Templates

Library seals are the ownership and processing stamps libraries use inside book covers and title pages — "Property of [Library Name]," accession-number stamps, and due-date stamps for the card-catalog-era checkout system some libraries still use alongside barcodes. Ownership stamps are typically small, rectangular, and placed inconspicuously (inside the front cover or on a specific page) rather than being decorative, since their job is deterring theft and identifying a book that's been separated from its collection. Due-date stamps traditionally used a rotating date-band mechanism so one physical stamp could imprint any date; a digital template here bakes in one fixed date per export, so libraries wanting the classic "change the date each day" stamp still need a physical adjustable dater from a stamp supplier rather than a StampZen design. Typical users are school and small community libraries, church or club lending libraries, and personal book collectors marking ownership of a private collection.