This enables end-users or readers of eBooks to reflow, and change typography – font family, font size, and spacing. Improved features include a security feature – DRM and support XHTML that can carry text, images and other supporting files. This eBook format features more flexibility and lends to accessibility for those with disabilities. The International Digital Publishing Forum developed ePub and became the standard for digital publication format. What is ePub?Įlectronic Publication (ePub) came a little later to meet the needs of digital publishing companies. All these features protect the file from forgery, copying, and illegal reproduction. It has become a valuable electronic tool because of its security features add effective watermarks, set utility restrictions, and expiration. PDF files can be shown and distributed in the same form across different devices with software that enables reading the files. It is used across various sectors from education and business to government. Fundamentally it shows various content – written text, images, graphics and interactive content in a fixed digital form. It is basically the equivalent of paper in electronic format. Portable Document Format (PDF) is the oldest eBook format.
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