I'm a new member joined here today, I'm an eBooks lover, and I got several e-Readers, Kindle Voyage, Kobo Touch and iPad.
I use them to read eBooks. Since have collecting lots of books, so I need a tool to help me manage them.
Then I use a tool named Epubor Ultimate eBook Converter.
After I adding my Kindle books to remove drm (before converting the format), it told me "Input the KSN or PID".
After contacting the staff they told me to remove the database:
Then tried again, I did, but I still can't resolve my problem.
Are there anybody who also is using this software? Some of my books removed drm successfully, but this book met problem always.
Edited by Edanward, 27 October 2015 - 04:05 AM.