PDF-Pro Standard is a very useful software for converting documents, images and even plan text file formats into Adobe PDF file format which is compatible with all operating systems. The program supports the characters of all languages even the complex Chinese and Japanese. You can convert many files at once through multiple file selection or with a simple drag and drop. The program is enhanced with some useful tools. One of these tools allows you to create watermarks from any text you specify and applying it to many PDF files at once. The software has Another tool that can help you protecting your PDF files with a password so you can restrict writing, printing, editing, copying text, extracting images and protect your documents from reading. There is a merging utility to enable you to merge many PDF files into one single PDF document. You can also split any PDF document into several parts by one page or by different specific page ranges. The program has a very nice interface and Windows XP style navigation menus making it easy to control the different program's features. The program has a rich documentation as well.