‘PDF’ is an acronym for Portable Document Format. It is a document format that is portable in nature. This means that it is a type of document or computer application that is used to contain textual data, graphics or both. This type of computer application is portable across multiple platforms. It means that a PDF document can be accessed on all kinds of computer systems.

A Portable Document Format file has been designed in two possible ways. There are native and scanned PDF files. Scanned files are those that are prepared by scanning a physical sheet of paper and then saving the scanned image as a PDF. Native files can be created using commercially available PDF conversion tools. You can create this non-editable computer application from any other file format, such as Word, Power Point, Excel, or Postscript.

This computer application has compression algorithms. These algorithms are the ones used to compress the images or graphics in the document. This feature compresses the size of a document which makes the file size small. A smaller size of a file can be easily used to transfer the files from one computer system to another. This is what makes a PDF document portable and compatible. The app also has all sorts of font types embedded in the document. You can embed the fonts so that they display on any system when transferred to any other user. In this way, sharing files and coordinating efforts becomes easy and convenient by embedding content in PDF file format. You can also insert multimedia effects or animated images into a non-editable file. You can even protect your content with the help of passwords, certificates or digital signatures. Passwords can be set by the author to prevent a reader from editing or reading a file without a correct password. Digital signatures allow a user to register the copyright of the content. All these are unique facts about PDF that make this application popular among users.