A document file format developed by Adobe. Short for "Portable Document Format" which pretty much describes its purpose.

It is a very popular file format for the following reasons

> PDF documents are almost always Read-Only. This makes it a very convenient format to distribute documents without the worry of content being changed
> A PDF prints out easily and accurately without messing about with formatting.
> A free 'Reader' utility called 'Acrobat Reader' allows anyone to view the document, so no expensive software is needed just to view documents.
> PDF is widely supported in the professional print industry so if you are an author of content, then buying the full authoring application is a sensible investment.
> There are free 'Print Drivers' available for applications such as Word that allows you to create a PDF file simply by selecting it as one of your printers. It is not so good as the proper Adobe authoring software, but good enough for simple documents.

Challenge see if you can find out one extra fact on this topic that we haven't already told you

Click on this link: PDF


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