| Full Name | Drawing Exchange Format |
| Extension | DXF |
| Type | CAD |
| Mime Type | image/x-dxf |
| Format | Binary |
The DXF file format is a CAD file format that was developed in the early 1980s with the aim of it being a standard format for exchanging CAD related data between different software applications, allowing disconnected teams of designers, running different CAD applications, to collaborate on CAD designs.
The format itself stores the CAD data in either text or binary form within a structured hierarchy, allowing the format to be extended with new features when needed. Despite its age, it is still in use today, and most major CAD applications support the DXF format.
| Full Name | Portable Network Graphics |
| Extension | PNG |
| Type | Image |
| Mime Type | image/png |
| Format | Binary |
A PNG file is a two-dimensional image file format often used to store high-quality logos, icons, and other imagery. PNG files first emerged in the early 1990s as an alternative to the GIF format, which was in widespread use at the time. PNG files have garnered support over the years to at least equal or surpass that of the GIF format. You will find all modern image editing or viewing applications will support PNG files.
Part of the success of the PNG format is its use of special compression techniques that allow a high-resolution image to be compressed into a very small file size. The compression used in the PNG format is lossless compression, ensuring no image detail is lost when an image is saved to the PNG format.
Uses
The PNG format is ideally suited for storing images that require no loss of detail or have transparent areas, such as company logos and computer graphics icons. It is not suited for storing general photos as, due to the nature of the compression, it will result in very large file sizes. Other formats, such as JPEG, use a lossy compression method, and this format is better suited to full-color photographic images.
