There are numerous free as well as paid softwares are available for creating and converting PDF files with different features. Microsoft has also included this feature as in-built in Office 2010 applications.
Creating a PDF document with Microsoft Office 2010 is so easy. No additional plugin is required. Prior to this we have to either use third-party softwares or extra plug-ins. The post I am sharing here is not a trick but may be usefull for you if you want to create PDF files for secure and unaltered distribution.
All Office 2010 applications, including Access, Excel, Word have in-built option to generate PDF files. I am just describing the methode using a Word file. This can also be used for converting a Word document to PDF format.
If you already have a word file (.docx/.doc) to convert, open the file.
If you wish to create a new one, then create and proceed as below.
After finishing all the edits, go to File and Click on Save as menu option.
A dilog will appeare. Below file name, there is by default 'Word Documnet (*.docx) is selected.
Click on the drop down box, and select PDF (*.pdf).
Now you can choose quality or optimization. I always advice to select Standard optimization but you may differ depending upon your needs.
Check the 'Open file after publishing' option to view the file immediatly after it has created. Click on Save button.