Updated: April 14, 2026 | Version 16 NEW

CAD DLL allows adding CAD functionality to applications in different languages that support DLL technology.

The library can be used in a vast range of industrial sectors:

• mechanical engineering,
• building,
• circuit technology,
• cartography,
• analytic systems,
• and many other spheres that involve work with CAD.

If you need a library compatible with Linux, please check libcad.so

Supported Formats

The CAD DLL library allows opening the following file formats:

• CAD formats: AutoCAD® DWG (up to Autodesk AutoCAD® 2026), DXF, DWF, HPGL, PLT;
• Vector formats: SVG, CGM, EMF, WMF;
• 3D formats: STEP, IGES, SLDPRT, SLDASM, X_T, X_B, BREP, STL, SAT/SAB, FSAT, OBJ, 3DS, SMT, IPT, IFC;
• Raster formats: PNG, BMP, JPG, GIF, TIFF.

CAD DLL supports saving to:

• Vector formats: AutoCAD™ DWG, DXF, PDF, SVG, CGM, HPGL, EMF, WMF;
• 3D formats: STEP, SAT, SAB, STL, OBJ;
• Raster formats: BMP, JPG, GIF, PNG and others;
• G-code.

Features

• support of all popular 2D and 3D CAD formats,
• high speed and accuracy of visualization,
• easy access to the properties of CAD entities: coordinates, texts, layers etc,
• automatic export to AutoCAD™ DWG / DXF and other CAD formats through the Windows Metafile technology which allows saving everything the software plots or prints to CAD,
• conversion to a wide range of file formats,
• generation of G-code from DWG and DXF files,
• 32- and 64-bit support,
• Unicode support,
• compatibility with any DLL-supporting development environment,
• ready to use demos for C#, Delphi, C++Builder, Visual Basic, Visual C++, ASP.NET, Java and VB.NET.

CAD DLL Editions

Package Contents

• the CAD.dll library;
• executable files of demo applications;
• documentation for demo applications and the library;
• the source code of the demo applications for:
  • Delphi
  • C++Builder
  • MS Visual Basic
  • MS Visual C++
  • C#
  • ASP .NET
  • VB .NET