PPTX is a presentation file format used by Microsoft PowerPoint. It supports multimedia, animations, and a variety of slide designs. PPTX files are widely used for creating business presentations, educational materials, and marketing pitches. They are compatible with both Windows and macOS platforms and can be shared easily.
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.