For years, Adobe Acrobat was my default PDF tool. It felt like the obvious choice. PDFs came from Adobe, so its software had ...

Abstract: A conceptual data schema that defines the structure of a metadata instance for a learning object is specified in this standard. For this standard, a learning object is defined as any entity, ...

Abstract: The procedures for testing the compliance of a wide variety of unlicensed wireless transmitters (also called intentional radiators and license-exempt transmitters) including, but not limited ...

Adobe Acrobat’s popularity is a given because of its advanced editing features. But it’s also pricey, lags with big files sometimes, and is packed with features you might never use. Plenty of users ...