Even though a PDF file appears similar to a Word document, it is not quite an easy task to modify a PDF document. However, the main disadvantage of PDF file format is that PDF files are hard to manipulate or edit. Additionally, PDF files can be easily watermarked and secured with passwords. This is because a PDF file contains fixed layout configuration within itself. The main advantage of using a PDF file to distribute a document is that it appears all the same to every user, regardless of the device being used to view the document. The PDF file format is mainly used to distribute large documents. A PDF file contains fixed layout properties and can store significant amounts of text and graphics. PDF – which stands for Portable Document Format – is primarily used for storing complex text documents and e-books.
Adobe developed the PDF file format in 1993.
PDF is one of the most popular file formats, nowadays.
