PDF files can be created with a number of methods. To create a PDF file from an application, PDF libraries can also be used. This method is basically used by application developers. However, PDF files can also be created with the help of a software program, and this software program is known as PDF creator. Most of the people employ this method to create PDFs. In PDF creation, Postscript printer has a big role to play.

What is Postscript? It is a page-description language just like C & C++. It describes in an accurate manner how a page looks. The Postscript printer reads & interprets Postscript programs & produce graphical data which can later be printed on plate, paper, film or saved as a file to disk. PDF is based originally on the Postscript language. The Postscript was developed to describe a page, and PDF format also describes a page. However, PDF is much smarter than Postscript. It does not only contain page-description info but also contains the info on how it behaves with such info. Also, PDF contains images, fonts, printing and viewing instructions, document security, movies, keywords for searching & indexing, etc.

Nowadays, people like to link because the PDF files have many advantages. The following section of this article contains advantages of PDF files.

1. PDF files are very portable. These can be used on many dissimilar platforms like OS/2, Windows, Mac, Linux and UNIX.

2. The files in PDF can be optimized. The sizes of those files can be set on the basis of purpose with the help of high, medium or low resolution.

3. PDFs are secure. The files saved as PDF can be protected with the help of encryption and passwords. Thus, the use of such files can be controlled to some purposes.

4. The readers available to read PDF files are free. These files can be viewed on any web browser. The major web browsers are Mozilla Firefox, Internet Explorer, Safari, Google Chrome and Opera, and all of them allow viewing files in PDF.

5. Watermarks can be added to PDF files behind the pages or on pages. This facilitates document viewing improvement.

Looking at these advantages of PDF files, download some PDF creator software and start creating PDF files from other formats. While selecting the right software, check whether it provides technical support, timely upgrades according to changing conditions, free trial and easy to use interface.