The suffix PS is used for postscript files that represent a graphics format in the page description language postscript. A PS file, in contrast to Encapsulated Postscript files (with the extension eps) can also contain several pages. Also, PS files do not have to comply with the special requirements of the Adobe Document Structuring Conventions like eps files.
PS files are less for the import or export of graphics thought, it is used eps. Ps files are ultimately created for printing, while the main application of eps files or eps graphics is to be inserted into other PS documents.
PS files can contain any combination of text, images, fonts, or vector graphics. These elements can be described (vector graphics) or embedded (bitmap graphics). This makes PS a very versatile format and also has the advantage of scalability. Unlike eps files, PS files do not contain a thumbnail image.
PS files have the advantage of being output directly to a Postscript printer. Meanwhile, the PS format has been largely supplanted by other page layout file formats such as PDF.
But there are quite a few commercial as well as free programs that can read and create PS files. Some programs, such as Scribus and Irfanview need to import PS files in addition to the free Ghostscript interpreter, which then takes care of the processing of this data.
Most often resolving problems with opening PS files is very simple. Just install an appropriate program that supports such files. All of the listed programs support PS files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of PS files or offer file conversion options, but may not be capable of editing such files.
It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate PS files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the Adobe Illustrator applications is not on the list, select "Browse" option in order to manually locate the directory where Adobe Illustrator has been installed.
Sometimes problems with opening PS files may not lie with the application itself, but can arise due to other causes, such as: