PDF stands for Portable Document Format and is a file format used to present documents in a manner independent of application software, hardware, and operating systems. It is commonly used for sharing documents online and for printing and saving documents in a standard format.

PDF stands for Portable Document Format and is a file format developed by Adobe Systems in 1993. It is used to store documents, including text formatting and images, in a single file that is easy to share and view on multiple platforms. PDFs are commonly used for documents such as user manuals, eBooks, application forms, and scanned documents, to name a few.
PDFs are designed to be platform-independent, meaning they can be opened and viewed on any device, regardless of the operating system. This makes them ideal for sharing documents with people who may not have the same software or hardware as you. PDFs are also secure, as they can be password-protected and encrypted to prevent unauthorized access.
PDFs are also highly versatile, as they can be edited, annotated, and converted to other file formats. This makes them ideal for collaboration, as multiple people can work on the same document without having to worry about compatibility issues. Additionally, PDFs can be optimized for web viewing, making them ideal for sharing documents online.
PDFs are also highly accessible, as they can be read using a variety of free and paid software programs. This makes them ideal for people with disabilities, as they can be read using screen readers and other assistive technologies.
Overall, PDFs are a versatile and secure file format that is ideal for sharing documents across multiple platforms. They are highly accessible, making them ideal for people with disabilities, and they can be edited, annotated, and converted to other file formats. PDFs are also secure, as they can be password-protected and encrypted to prevent unauthorized access.