Developer's DescriptionBy Informative GraphicsView, print, mark up, and compare PDF, TIFF, HPGL, and AutoCAD files.Multi-format desktop software to view, print, markup and compare PDF, TIFF, HPGL, AutoCAD, Microsoft Office (additional fee) and much more. Save files to PDF, TIFF or secure CSF. Compare feature can dynamically fade one file over the other and highlight differences.