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EPUB does feature digital Rights Management but not as requisite and efficient. That is the reason why it is used in Official documents across Banks, Educational Institutions and even the Government.

PDF files are more secure with the users to have options to place a password to prevent others from opening the document without authorization.

A PDF file maintains static images, tables, and other elements but EPUB supports re-flowable content which allows all the content to be optimized to provide a better reading experience to the readers.However, EPUB was designed to be more dynamic and adjust the content according to the device it is opened on especially mobile phones and tablets. PDF files are static and once set they appear alike in all devices and can be printed in the exact same way from any printer.The reason for this decline is the difference between the two formats: However, eBooks in PDF format has declined after the invent of EPUB. The digital copies of many books were released in PDF format.

It was developed by Adobe in the 1990’s and it still widely used in official paperwork. One of the first and most popular formats for any digital document was PDF which stands for Portable Document Format.

Calibre ebook reader for pc free download