| Format introduction | DWG is a proprietary binary file format used for storing two- and three- dimensional design data and metadata. It is the native format for several CAD packages including DraftSight, AutoCAD, IntelliCAD, Caddie and Open Design Alliance compliant applications. In addition, DWG is supported non-natively by many other CAD applications. | Portable Network Graphics (PNG) is a raster graphics file format that supports lossless data compression. PNG was created as an improved, non-patented replacement for Graphics Interchange Format (GIF), and is the most used lossless image compression format on the Internet. PNG itself does not support animation at all. MNG is an extension to PNG that does; it was designed by members of the PNG Group. |
| Technical details | DWG contains all the pieces of information a user enters, such as: Designs, Geometric data, Maps, Photos. The .dwg file format is one of the most commonly used design data formats, found in nearly every design environment. The DWG technology environment contains the capability to mold, render, draw, annotate, and measure. | PNG supports palette-based images (with palettes of 24-bit RGB or 32-bit RGBA colors), grayscale images (with or without alpha channel), and full-color non-palette-based RGB[A] images (with or without alpha channel). PNG was designed for transferring images on the Internet, not for professional-quality print graphics, and therefore does not support non-RGB color spaces such as CMYK. |
| File extension | .dwg, .dws, .dwt | .png |
| MIME | application/acad, application/x-acad, application/autocad_dwg, image/x-dwg | image/png |
| Developed by | Autodesk | PNG Development Group |
| Type of format | Computer-aided design | lossless bitmap image format |
| Associated programs | AutoCAD, OpenDWG, LibreDWG | Adobe Photoshop, Paint Shop Pro, the GIMP, GraphicConverter, Helicon Filter, ImageMagick, Inkscape, IrfanView, Pixel image editor, Paint.NET, Xara Photo & Graphic Designer. |
| Wiki | https://en.wikipedia.org/wiki/.dwg | https://en.wikipedia.org/wiki/Portable_Network_Graphics |