Allegria SoftwareSave
Programs for review, comparison and markup of a variety of CAD formats, online and standalone, as well as graphics file conversion, and plot management. http://www.allegria.com/
CADViewer ProSave
A viewer for AutoCAD Drawing Web Format (DWF) and SVF, for redlining CAD drawings on any client platform via a web and Java based interface. http://www.cadviewer.com/
Cimmetry Systems Inc.Save
Develops the AutoVue family of programs to view and markup 2D/3D CAD and office formats. A thin/thick-client CAD viewer integrates with ERP, PLM, and document management systems. http://www.cimmetry.com/
DraftViewSave
Direct viewing of Computervision CADDS, Personal Designer, AutoCAD DWG, DXF, HPGL, CALS, CGM and other file formats. http://www.draftware.com/
FPLOTSave
A HPGL/2 interpreter software, that can be used to view and print plot files, or as a plotter driver for other programs. http://www.fplot.com/
PloViewSave
Displays HPGL/HPGL2 graphic files, with output to printers and plotters, and PDF, DXF, TIFF, JPEG, and BITMAP files. Also allows text search and measurement of distances. http://www.isoplotec.co.jp/ehp.htm
RasterexSave
Multi format viewers with markup and collaboration facilities, raster editing software, and related developer tools. http://www.rasterex.com/
Slick for WindowsSave
View and print a large number of vector and raster file formats. Includes raster conversion, redlining, and database for file notes and tracking. http://www.slickwin.com/
iTwinViewSave
An online service for viewing CAD files in your web browser through a Java applet, as well as software for file viewing and conversion. http://www.cad2dtp.com/