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PDF 2.0 defines 256-bit AES encryption as the standard for PDF 2.0 files. The PDF Reference also defines ways that third parties can define their own encryption systems for PDF. PDF files may be digitally signed, to provide secure authentication; complete details on implementing digital signatures in PDF are provided in ISO 32000-2.
Class 2 - This format includes more hyperlinks than Class I, such as figures, tables and section references. A hyperlinked PDF document is the typical example. The document would be marked up with XML. Class 3 - The difference between Class II and Class III is analogous to the difference between PDF book and a web site.
Pedagogical documentation, in terms of the teacher documentation, is the "teacher's story of the movement in children's understanding". [13] According to Stephanie Cox Suarez in "Documentation - Transforming our Perspectives", "teachers are considered researchers, and documentation is a research tool to support knowledge building among children ...
David M. Levy has said that an emphasis on the technology of digital documents has impeded our understanding of digital documents as documents. [2] A conventional document, such as a mail message or a technical report, exists physically in digital technology as a string of bits, as does everything else in a digital environment. As an object of ...
An electronic document is a document that can be sent in non-physical means, such as telex, email, and the internet. [1] Originally, any computer data were considered as something internal—the final data output was always on paper.
The Biodiversity Heritage Library website, an example of a digital library. A digital library (also called an online library, an internet library, a digital repository, a library without walls, or a digital collection) is an online database of digital objects that can include text, still images, audio, video, digital documents, or other digital media formats or a library accessible through the ...
DigiDoc (Digital Document) is a family of digital signature- and cryptographic computing file formats utilizing a public key infrastructure.It currently has three generations of sub formats, DDOC- , a later binary based BDOC and currently used ASiC-E format that is supposed to replace the previous generation formats.
Historically, most classes of technical documentation lacked universal conformity for format, content and structure. Standards are being developed to redress this through bodies such as the International Organization for Standardization(ISO), which has published standards relating to rules for preparation of user guides, manuals, product specifications, etc. for technical product documentation.