PDF files can be generated by printing to a pdf driver, such as Adobe Acrobat. EnviroInsite also has an internal pdf driver that enables you to generate a pdf file without invoking an external pdf driver.
To do so, select File -> Export -> PDF. This will open a file to select some pdf properties and the pdf file path. Clicking OK in that dialog will open the PDF preview dialog box.
PDF Preview Dialog Box
From the PDF Preview dialog box, you can set the print scale, paper size, margins, and go back and select the portion of the view window to be included in the pdf file.