Next to the extended capabilities of PDF/A-3 callas software also pays attention to the PDF/UA format, which has been integrated in callas pdfaPilot. At CeBIT callas shows how to create and check accessible PDF documents and how to convert them to EPUB. Prerequisite for this is the so-called tagging, that reflects the content structure, reading order, and alternative text for images of a PDF. This way, for example, visually impaired people get access to PDFs through Braille, read-aloud function or intelligent screen magnifier. With the built-in function, you can check tagging quickly and ensure that the content structure is stored correctly with PDF tags. On top of that export from PDF to EPUB allows the implementation of PDF files into eBooks that can then be read on mobile devices such as smartphones and tablet PCs. With tagged PDFs a “reflow” becomes possible; a text reflow that is based on the size of the screen and not on the size of the PDF page.