ISO 32000 is an international standard that defines the Portable Document Format (PDF). It was developed by the International Organization for Standardization to ensure consistent and reliable document exchange across different platforms and devices. The standard outlines how to create, view, and manage PDF files, making it easier for users to share documents without losing formatting. The first version of ISO 32000 was published in 2008, and it serves as a foundation for various applications and software that utilize the PDF format. This standard helps maintain compatibility and accessibility, ensuring that documents remain usable over time, regardless of the software used to create or view them.