PDF specifications

A PDF (Portable Document Format) is a versatile file format designed to display documents consistently across different devices and platforms. It preserves fonts, images, layout, and formatting, ensuring the document looks the same everywhere. PDF specifications define how these elements are encoded, including text rendering, images, hyperlinks, and interactive features like forms. They also set standards for security, annotations, and digital signatures. Developed by Adobe, the format allows for reliable, platform-independent sharing of complex documents, making it ideal for official papers, reports, manuals, and publications.