Everything you need to know about PDF documents
PDF stands for Portable Document Format. Created by Adobe in 1993, PDF has become the world's most popular document format because it preserves formatting across all devices and operating systems. Whether you open a PDF on Windows, Mac, Linux, or your phone — it looks exactly the same. PDFs can contain text, images, links, forms, signatures, and even multimedia. They're used for contracts, resumes, ebooks, manuals, tax forms, and billions of other documents. Our free tools let you compress, merge, split, edit, and convert PDFs right in your browser.