ISO 19005 (PDF/A)

ISO 19005, known as PDF/A, is a standard for archiving electronic documents in a way that ensures they can be accessed and viewed reliably over time. Unlike regular PDF files, PDF/A files are designed to be self-contained; they include all necessary information, such as fonts and images, to display the document accurately, regardless of future software changes. This makes PDF/A ideal for preserving important documents—like legal papers, historical records, and scientific research—ensuring they remain understandable and visually consistent for years to come.