To view images in TIF format, you will need to install a "viewer" for this type of document. If you do not have the correct viewer, when you try to display a TIF image, an empty box will appear instead of the image. You may install a free viewer called AlternaTIFF by clicking on the following link: http://www.alternatiff.com/install/ (this viewer is free but you need to register before you can use it).
If you are going to export content to PDF format, you will need Adobe Acrobat Reader version 5 or higher. This program can be downloaded for free by clicking on the following link: http://www.adobe.com/products/acrobat/readstep2.html Arial