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.
eps The legacy EPS format or encapsulated postscript file format was developed as a document interchange format by Adobe systems in 1992 to facilitate cross platform importing and exporting of vector graphical documents between supporting applications and documents. The EPS file is commonly associated with Adobe illustrator and other applications that support the postscript language. The EPS format supports vector graphics, bitmap images, as well as text but is more commonly used for graphic representation. It is worth noting that EPS files exist as final-form representations allowing minimal editing once created. The exception to this is the support of a few transformation operation such as rotation, scaling, and clipping. An EPS file is usually produced to be included in other documents such as text documents.