The JPG file is a great format as it often manages to compress files to 1/10 of the size of the original file which is especially good for saving on bandwidth. The JPG format is often used in digital camera memory cards. The resultant 'lossy' file means that quality can never be recovered. JPG's are often used for web sites and email as they are generally smaller file sizes as they are lossy meaning that some image quality is lost when the JPG is compressed and saved.

Microsoft Office binary file format specifications.

The file basically contains a set of instructions that tell the printer what to print and provide the co-ordinates on the page of where an object or text should be printed.

Now a legacy file format, most printers and programs continue to support this format, with the only pre-requisite being a printer utility that supports PostScript. Typically files are created by applications such as Adobe Acrobat or Quark Xpress. PostScript is actually a programming language as well as a file type. Although no longer as popular or common as it was historically, it is still an important file type.

This file type revolutionised publishing allowing certain curved items to be printed that previously could only be printed on specialist CAD printers. Postscript addressed this by defining a language that allowed applications to instruct the printer how to display objects on the page. Prior to the development of PostScript, it was not possible to print images and text on the same page. ps extension is a file type used by the publishing industry.

Psx to psp converter