Ask the publishers to restore access to 500,000+ books. An icon used to represent a menu that can be toggled by interacting with this icon. A line drawing of the Internet Archive headquarters building ...

This sample project helps you get started with the PDF Services Java SDK. The sample classes illustrate how to perform PDF-related actions (such as converting to and from the PDF format) using the SDK ...

Abstract: Optical wireless communication (OWC) refers to transmission in unguided propagation media through the use of optical carriers, i.e., visible, infrared (IR), and ultraviolet (UV) bands. In ...

The National Park Service has revised its list of free entrance days, dropping Martin Luther King Jr. Day and Juneteenth — two federal holidays that were added under President Joe Biden’s ...