pap.er

pap.er is a macOS‑only application that supplies users with a daily selection of high‑resolution wallpapers, including images optimized for 4K, 5K and portrait displays. The app organizes the collection into curated categories, allows one‑click setting of the desktop background, and supports automatic rotation on configurable intervals such as hourly, daily, or weekly. Users can also add personal images to the library by placing them in a designated folder and enabling local import.

The wallpaper library is assembled from works contributed by photographers and designers worldwide, with each image accompanied by a source link to confirm licensing. The service has been offered for free since its initial release in 2017, with plans for a future paid tier that may add additional features. Compatibility is limited to macOS 11.0 and newer for the current version, while older releases support macOS 10.13 and later but lack the editorial curation.

Targeted at Mac users who want regularly refreshed, high‑quality desktop backgrounds, pap.er emphasizes ease of use through a simple interface, automatic wallpaper swapping, and the ability to incorporate user‑provided images. The focus on curated 4K/5K content and clear attribution distinguishes it from generic wallpaper browsers.