zerzo one
erzo creates EPub 3.2 compatible documents. In zerzo you can create pages with content aligned left/right/center. You can create tables, add audio/video The pages can be created with zerzo. You can also create cover image. Using zerzo the pages can use images, audio, video and Math formulae
With zerzo You can create Text Books,Novels,Publicity Material,Manuals,Training Material and many more. And all of these in the language of choice e.g Hindi. See the screen shot below. Investment in buying zerzo is worth more than you pay. You will need these to use zerzo effectively
Info-Zip's zip
7-Zip https://www.7-zip.org
java 8 runtime
epubcheck is downloaded by zerzo in about 4 minutes--Only Once at install time
Google's Akshar Unicode on your PC/laptop for covering all languages.
The App has an intuitive graphic interface which also has a sampling f the kinds of books you can create.
Shehzada life story of a prince in English
Aero hobbies in English
Thus spoke Zarathustra in English
veyi padagallu in Telugu
Chemistry Text Book in Hindi