Hi, Jose! First of all, thank you so much for your purchase and your kind words! I'm really glad you're enjoying the book! Regarding your question, yes, you would need to purchase the Roll20 version separately. While the PDF and Roll20 versions contain essentially the same content, they are actually two very different products in terms of how they are developed and used. Unfortunately, there is no simple way to convert a PDF into a Roll20 compendium. Unlike a PDF, which is primarily designed for reading, the Roll20 version requires the content to be specially formatted, programmed, and integrated into the platform so that the monsters, statblocks, abilities, and other features work properly within Roll20. To make this possible, I had to hire a separate team of specialists with expertise in Roll20 development and programming. This involved a significant amount of additional work, time, and expense beyond creating the original PDF. I hope this helps explain why the Roll20 version is sold separately, even though much of the content is the same. I certainly understand your concern about having to purchase the material again, and I truly appreciate your understanding and support! Thank you again for supporting my work, and I hope you continue to enjoy the book!