LIT is an ebook format used by Microsoft’s Reader application. It was developed as a proprietary format for electronic books, supporting text, images, and hyperlinks. While it was once popular, the LIT format has been largely replaced by more widely accepted ebook formats like EPUB and MOBI.
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.