The Portable Document Format (PDF) is a file format created by Adobe that allows documents to be shared easily while preserving their original layout. This means that whether you open a PDF on a computer, tablet, or smartphone, it will look the same. PDFs can contain text, images, and even links, making them versatile for various uses, such as reports, eBooks, and forms. One of the main advantages of PDFs is their compatibility across different operating systems and devices. This ensures that anyone can view the document without needing the same software that created it. Additionally, PDFs can be secured with passwords, making them a safe choice for sharing sensitive information.