Adobe Acrobat Reader is a document viewer used for previewing and printing .PDF files. PDF files are used for both the preview and printing engine of Instanet Forms CD and the Web Service. To have access to the latest features of the Instanet Forms, we recommend you use the most recent version of Reader. You can download the Adobe Acrobat Reader for free from http://www.adobe.com/products/acrobat/readstep2.html.