PDF stands for “Portable Document Format”. PDF is a certain file format that is designed to present documents on various devices or platforms. This format was developed in 1992 by Adobe. Since then, this format has become one of the most widely used formats for storing and exchanging documents.
PDF files can store a wide variety of data. This includes formatted text, vectors, and raster images. It can also have information about page layouts, determine the placement of each element on the page, and the shape and size of pages in a document. All this information is stored in a standard format, and therefore the document looks the same on any device, no matter what year, company, type, or what program is used to open it. For example, if you save a PDF on a Mac, it will appear the same way in Windows, Android, and iOS.
The PDF format also supports various metadata. This includes the title of the document, author, subject, and keywords. It can store embedded fonts. That is why you do not need to download special fonts to view the document correctly. PDF documents may also be encrypted so only authorized users can open them.