PDF file format

A PDF (Portable Document Format) is a file format designed to present documents consistently across different devices and platforms. It preserves the original layout, fonts, images, and formatting, ensuring the document looks the same everywhere. PDFs can contain text, images, links, and interactive elements, making them versatile for sharing reports, forms, and manuals. They are widely used because they maintain the integrity of the original document while remaining compact and secure, often enabling features like password protection and digital signatures for added security.