CAD Overlay CAD Overlay CAD Overlay is a commercial software application for raster-to-vector translation in 2D computer-aided design (CAD) and drafting — available between 1988 and 1996 as a third-party application for AutoCAD and other CAD systems. Developed and marketed by Image Systems Technology, CAD Overlay was first released in January 1988 running on AutoCAD Version 2.6. CAD Overlay replaced the previous generation of automatic raster-to-vector translation systems by embedding scanned documents and images directly in the CAD system. CAD Overlay was derived from a custom AutoCAD application developed using the Nth Engine graphics board in 1987 by David Chassin for Image
Caddie (CAD system) A Microsoft Windows version of Caddie was not released until 1993. In 1998, Caddie was acquired by the South African software development company Billcad Holdings. By this time, Caddie had about 11 000 users. In 1999, Billcad became Planit Technology. In early 2001, Planit Technologies went into liquidation. By March 2002, the British company Advanced Computer Solutions (ACS) bought all the rights from the South African holders and also acquired the Caddie operation within South Africa. ACS was previously Caddie's British distributor. ACS has offices in South Africa and the United Kingdom. Caddie (CAD system) Caddie is a mid-range computer-assisted