Teigha Viewer

View .dwg and .dgn files with this free application available for Windows, Linux, MacOS and Android.

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Teigha File Converter

Convert between .dwg and .dxf file formats with this application. It's available for Windows, Linux, MacOS and Android. With wildcard support for input file specification, it allows .dxf files to be used as input.

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Teigha Xtension SDK

Write plug-in modules for Teigha-based applications. Based on C++ and .NET this Software Development Kit (SDK) allows CAD users and third-party component developers to create custom objects and custom commands.

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Specification for .dwg files

Use this open design document to specify the .dwg file format. It covers headers, entities, table entries, objects, raster images, object maps, and bookkeeping information.

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