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Text in PDF is represented by text elements in page content streams. A text element specifies that characters should be drawn at certain positions. The characters are specified using the encoding of a selected font resource. A font object in PDF is a description of a digital typeface.
PDF is a standard for encoding documents in an "as printed" form that is portable between systems. However, the suitability of a PDF file for archival preservation depends on options chosen when the PDF is created: most notably, whether to embed the necessary fonts for rendering the document; whether to use encryption; and whether to preserve additional information from the original document ...
Real-time text programs date at least to the 1970s, with the talk program on the DEC PDP-11, which remains in use on Unix systems. Beam Messenger, a mobile app offering real-time text messaging, was released in 2014. [3] Certain real-time text applications have a feature that allows the real-time text to be "turned off", for temporary purposes.
RTAI—Real-Time Application Interface; RTC—Real-Time Clock; RTE—Real-Time Enterprise; RTEMS—Real-Time Executive for Multiprocessor Systems; RTF—Rich Text Format; RTL—Right-to-Left; RTMP—Real Time Messaging Protocol; RTOS—Real-Time Operating System; RTP—Real-time Transport Protocol; RTS—Ready To Send; RTSP—Real Time ...
A collaborative real-time editor is a type of collaborative software or web application which enables real-time collaborative editing, simultaneous editing, or live editing of the same digital document, computer file or cloud-stored data – such as an online spreadsheet, word processing document, database or presentation – at the same time by different users on different computers or mobile ...
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Real-time protection, protection enabled constantly, rather than by, say, a virus scan; Real-time text, transmitted as it is being typed or produced; Real time Java, for real-time programs in Java; Real-time disk encryption, encrypting data as it is written to disk; Real-time web, whereby information is sent to users as it becomes available
The term "real-time" is used in process control and enterprise systems to mean "without significant delay". Real-time software may use one or more of the following: synchronous programming languages, real-time operating systems (RTOSes), and real-time networks. Each of these provide essential frameworks on which to build a real-time software ...