The paper provides a comparative analysis of interactive digital textbooks (MDIR) developed and implemented in the training process in various countries around the world. The interactive content of these textbooks is rigid, as is that of printed textbooks: the end user (teacher) cannot make changes to the content in terms of adapting it to their personal teaching style, student contingent or forms of offline activities, and online. To create MDIR manuals, it is recommended to use MDIR Constructor's own design software, with the help of which the user, based on the * .pdf files of the printed manuals, creates versions of interactive digital manuals with customized content: audio, video, tests, virtual experiments.