Convert gm4 to png

What is the difference between .gm4 and .png?

Description: The GM4 file type is associated with Autologic, a software used primarily for document management and publishing. GM4 files typically contain information related to graphic design, page layout, or print production. These files are used within the Autologic system to store and handle graphic media elements such as images, fonts, and formatting details necessary for professional printing and publishing workflows. The format is specialized for use in the publishing industry, facilitating the creation and modification of high-quality printed materials.; A PNG file is an image file stored in the Portable Network Graphic (PNG) format. It contains a bitmap of indexed colors and uses lossless compression, similar to a .GIF file but without copyright limitations. PNG files are commonly used to store graphics for web images.