pdf The .pdf file format extension was developed by Adobe systems in 1993 as a means of presenting documents in a consistent manner across different platforms, hardware, operating systems, and applications. The format was not released as an open source document format until 2008, though minimal proprietary technologies still controlled by Adobe Systems exist in the format. Every .pdf document carries with it the necessary meta information required to properly reconstruct the text, fonts, and graphics used to produce the document. This ensures that documents will be viewed in exactly the same way the author intended regardless of the device used to open the document. From conception to date, Adobe Systems has continued to support the format adding features with every iteration of the standard including hardened algorithms for document encryption and privacy. Today, many freely available readers exist allowing you to open and view .pdf documents and create or convert other file formats such as .jpeg and .doc into .pdf documents.
pps A .pps extension file is a PowerPoint Show designed with the help of Microsoft PowerPoint application. This file consists of text, audio-visual components, animations, images and hyperlinks that are combined as required to present a slide show to a group of audience. It is particularly useful to present slide shows for the educational sector and for corporate presentations but can also be used for personal presentations. Interactive and dynamic multimedia slide shows are created with the PPS format. The .pps file extension is similar to .ppt extension files except that the presentation directly opens in the slide show mode instead of the edit mode. Files saved with the .pps extension cannot be edited as they are converted to the slide show format. They are smaller in size than the PPT presentations and can be sent across from one user or device much faster than the presentations with .ppt extensions.