One of the ways in which users can share, print, or encrypt their Word (DOCX) documents is to convert them to PDF (Portable Document Format) files, thus enjoying a level of flexibility that Microsoft's Office application might not offer.

There are many tools that allow users to convert their Word files to PDF, and one of them is the iStonsoft Word to PDF Converter, a tool that also allows users to rename documents during conversion, as well as to process multiple files at the same time.

The program comes with an easy-to-use, straightforward interface that includes a set of simple, intuitive commands, thus being suitable for a wide range of users, including those who do not posses advanced computer skills.

With the help of this tool, users can convert multiple Word files to PDF with only a few mouse clicks. Provided that they want to convert these documents as they are, they can simply browse for the folder where they are stored, load all of them in the program, then click on the Start button to convert them.

The application allows users to personalize the output PDF files before kicking off the conversion process, by changing attributes such as Page size, Margins, and Author in the Page settings tab of the Preference window.

Users can secure their PDF files by defining both Owner and User passwords in the Preference window. They can also set Copy and Print permissions for these files.

During our testing, we noticed that the program feels quite snappy and that it can convert a multi-page DOCX file to PDF within seconds, depending on its content. It does not require a large amount of system resources either.

All in all, Word to PDF Converter can prove a good option for those users looking to convert DOCX files to PDF fast. It offers batch conversion capabilities, customization features, and also allows users to password-protect the output files.