Building a better web site ...
Questy's, Document formats
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Building a better web site ... Questy's, Document formats |
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While the following files types can NOT be viewed directly by the browser without some type of "helper" application, you may still use them in your role as a webmaster. They are not really graphics formats, but are document formats. PDF (Portable Document Format) captures formatting information from a variety of desktop publishing applications, making it possible to send formatted documents and have them appear on the recipient's monitor or printer as they were intended. The purpose of a PDF file is to display a document properly formatted with fonts, colors, and graphics accurately on as many computers with as many operating systems as possible. The original document can be created using a wide variety of word processing and page layout programs and then be converted by Acrobat into a PDF file. Acrobat Reader, a free program, will read the PDF file and show the document on the screen formatted exactly as it was in the original application. Users do not need the original application that created the document in order to read it. Many companies convert manuals and training documents into PDF files and make them available for download over the Web. The users see the fully formatted manual on their screen, no matter what computer or operating system they are using, as long as it can run Acrobat Reader. The documents may run into the hundreds or thousands of pages. This is a cost effective way to send out information compared to printed materials and CD-ROMs. RTF (Rich Text Format) created by Microsoft are actually ASCII files with special commands to allows commands such such as fonts and margins to be incorporated directly in the file. Because each word processor application has its own file format (.DOC for Microsoft Word, .WPF for Word Perfect), it is difficult to exchange files. A file saved in the Rich Text Format will not have all the formatting options possible saved with it, but it will have the basic formatting commands to let it be opened as a formatted document in a variety of word processing programs that work on a variety of operating systems. PostScript is primarily a language for printing documents on laser printers, but it can be adapted to produce images on other types of devices. PostScript is the standard for desktop publishing because it is supported by imagesetters, the very high-resolution printers used by service bureaus to produce camera-ready copy. EPS
(Encapsulated PostScript) is the graphics side of PostScript. |
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