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KEY is a presentation file format created by Apple’s Keynote software. It allows users to create dynamic presentations with animations, multimedia, and interactive elements. KEY files are optimized for macOS and iOS devices and can be exported to other formats like PDF or PowerPoint for broader compatibility.
PDF is a widely used file format for documents that need to maintain their original formatting across different devices. It can store text, images, and interactive elements like hyperlinks or forms. PDF files are commonly used for contracts, brochures, and professional reports.