Use a legitimate trial key or a lifetime license . The cost of a legitimate ABViewer license is less than two hours of billable engineering time.

To avoid overpaying, select only the features you actually need: Professional ($77/year): Includes 2D/3D viewing, editing, and conversion. Enterprise ($154/year): Adds high-end features like PDF to DWG conversion , batch operations, and file comparison. CADSoftTools 4. Try Before You Buy