What is a common use for .png files?

The common use for .png files is indeed in desktop publishing. PNG, or Portable Network Graphics, is a raster graphics file format that supports lossless data compression. It is widely used for images on the web and in various graphic design applications, particularly within the context of desktop publishing. The format allows for transparent backgrounds, making it ideal for overlaying images and graphics on various documents, presentations, and digital publications.

In desktop publishing, .png files can be utilized for logos, illustrations, and any other images that require high-quality graphics with transparency. This makes .pngs suitable for layouts that need to blend or integrate various visual elements effectively.

While the other options pertain to different digital media forms, they do not align with the primary function of .png files. For instance, .png files are not used for creating audio files, which require formats such as .mp3 or .wav. Similarly, video production relies on formats that can store moving images and sound, such as .mp4 or .avi. Text documents utilize formats like .doc or .pdf, which are designed specifically for textual information rather than graphic images.