Scanning these articles as portable document format (pdf) files takes only slightly more time than using a copy machine, and it uses considerably less paper.

Many systems permit this operation, either by converting the document with import and export functions, or by making their internal document format an open standard.

It also includes support for a wide range of document formats, social media links and the ability to highlight copy.

Conversion between document formats are also forms of encoding.

These extensions include rich presence document formats, privacy control, partial publications and notifications, past and future presence, watcher information and more.