SANE provides a portable API, a collection of scanner backends and frontends, and network scanning support (saned/scanimage) for Unix-like systems.

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HP Smart is HP’s cloud-connected app for configuring and managing HP printers. It supports printer setup, mobile and desktop printing and scanning, ink/toner monitoring, access to HP account features, and basic cloud-based print/scan workflows.
SANE provides a portable API, a collection of scanner backends and frontends, and network scanning support (saned/scanimage) for Unix-like systems.

Activity unknown
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. In exchange you take on hosting, backups and updates yourself.
Browse everything in Document Processing & PDF Tools.