PEF is a raw image file format used by Pentax digital cameras. It stores the raw data from the camera’s sensor, providing high-quality images with minimal compression. PEF files are ideal for photographers who want to maintain maximum image quality and perform extensive post-processing adjustments.
PNG is a lossless image format that supports transparency, making it ideal for logos, icons, and web graphics. Unlike JPEG, PNG doesn’t lose any image data during compression. It retains high-quality detail, especially in images with sharp edges, and is commonly used for design work where transparent backgrounds are required.