CadLib screenshot


Required: .NET Framework 4.0  .NET Framework
Recommended: H3Viewer, an improved MS Help 3 Viewer by The Helpware Group

Latest news

Sep 30, 2014: Released version Added support for ACAD_PROXY_ENTITY.

Apr 1, 2014: Released version Added option to install documentation for VS 2012 and VS 2013.

Mar 14, 2014: Released version Bug fix: fixed reading/writing layer transparency from/to DWG files.


CadLib comes with comprehensive help documentation that integrates with the Visual Studio help system. A stand-alone help 1 file (.chm) can be downloaded separately (on Windows XP the help file might need unlocking, see here). Both C# and VB sample solutions are provided. A basic viewer example is included so you can test view the DWG and DXF files you have created with the library. Also a DWG/DXF to image converter example is included and an example DWG/DXF writing program.

CadLib 4.0 DWG DXF .NET Library

Add CAD capabilities to your .NET application with CadLib 4.0. CadLib makes it extremely easy to work with DWG and DXF files in C#, VB.NET or any other .NET language. This is achieved by providing you with complete type safety, comprehensive documentation and sample solutions. CadLib's rendering is high quality and easy to integrate in your own application. Display DWG and DXF files using GDI+, WPF or OpenGL. Conversion to XAML is also supported.

Example solutions written in C# and VB.NET show how to add more advanced features like zooming, panning and picking. Samples are included that demonstrate use with Windows Forms, WPF, OpenGL and ASP.NET 4.0.

Below is a short list of CadLib's main features (see here for a complete list):

  • Import and export DWG files (versions 13, 14, 2000, 2004, 2007, 2010, 2013).
  • Import and export DXF files (versions 12, 13, 14, 2000, 2004, 2007, 2010, 2013).
  • Display DWG and DXF files in Win Forms using GDI+ (2D and 3D wireframe rendering).
  • Display DWG and DXF files using WPF (wireframe rendering).
  • Display DWG and DXF files OpenGL (surface rendering).
  • Pick engine for mouse selection.
  • Export DWG and DXF files to image: .bmp/.jpeg/.png/.tiff/.gif
  • Export DWG and DXF files to PDF, PostScript, SVG, XAML
  • Copy (clone) entities, even across DXF files
  • Both ascii and binary DXF supported
  • 100% .NET code (written in C#), compiled with the Any CPU setting. All objects are exposed as .NET classes. Convenient enums are provided for all enumerations and flags.
CadLib GDI+ screenshot Display a DWG or DXF file using GDI+ in a .NET Control.
CadLib OpenGL screenshot Display a DWG or DXF file using OpenGL in a .NET Control.
CadLib Dimensioning screenshot Create DWG or DXF drawings including dimensioning (engineering/architectural styles supported).