WPD

WPD is an acronym that can refer to several distinct concepts across different fields, so context is essential to determine its meaning. Notable uses appear in computing, publishing, and international observances. The acronym may be encountered in technical documentation, software file types, or in event calendars.

In computing, Windows Portable Devices (WPD) denotes a Windows API and device interface for communicating with portable media players, cameras, and similar peripherals. WPD supports transfer protocols such as MTP and PTP and is used by Windows to manage device communications, drivers, and related services.

In publishing and document formats, WPD stands for WordPerfect Document, the native format of Corel WordPerfect. Documents saved with this format typically have a .wpd extension. Although WordPerfect’s prominence has waned since its peak in the 1990s, the format remains supported by some word processors and archival software.

In international observance contexts, WPD can denote World Population Day, observed annually on July 11 to raise awareness of population-related issues. It is also used by some sources to refer to World Poetry Day, designated by UNESCO and celebrated on March 21. Usage varies by organization and region.