![]() Images: All images (except for decorative images) should be accompanied by a complete and relevant alternative text description.Adjustable content: The content should be, as far as possible, adjustable by the reader (possibility to change the font, font size, margins, etc.).Here are the most important elements to consider when choosing to produce an accessible EPUB file: ![]() Guidelines for producing an accessible EPUB 3 file Overall, the most important question to ask when designing a layout for a digital book based on the layout of a paper book is to always ask yourself whether this layout is semantically relevant, or whether it is purely decorative, in which case it is important to make choices that are more suitable for digital reading.Avoid creating tables when the information can be rendered as text.Use tags and for bulleted and numbered lists.Forcing a font into the EPUB file prevents the reader from selecting the font that best suits their needs. For example, most reading tools allow the reader to choose the OpenDyslexic font, which is specially designed to make it easier for dyslexics to identify letters. Avoid forcing a font, as reading tools offer different fonts.For the same reason, if a colour is chosen for a font, again, it is recommended to use high contrast colours.Avoid coloured backgrounds, or choose high-contrast colours that will stand out well on a reading machine (currently, colour is not yet supported by reading machines, so colours are rendered in greyscale).Avoid images in the background of a title or text.In order to guarantee an optimal reading experience on all media, it is sometimes necessary to detach oneself from the layout of the paper book, by following the following rules in particular: In digital, reading comfort invariably depends on the chosen reading device (e-reader, tablet, phone, etc.) and its functionality. When designing a digital book, although it is normal to want to choose a layout that is close to the one chosen for paper, it is crucial to think about the experience of the final reader.The fixed layout EPUB 3 format also does not provide optimal accessibility, although it is a must for certain types of publications such as comics and photography books. It is strongly recommended that PDF and EPUB 2 be abandoned as much as possible in favour of the EPUB 3 reflowable format, as these formats do not provide the accessibility features necessary for people with visual impairments. The reference format for an accessible file is EPUB 3 reflowable. ![]() General recommendationsīefore we look in more detail at accessibility within a file, here are some general recommendations: ![]() However, if you are producing your files in-house or dealing with another file producer, this document aims to provide you with a framework for producing your accessible EPUB files through guidelines and more in-depth resources on the subject. You can find more information about this service here: and contact us for a quote.
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