Hi. Thanks for the welcome.
I haven't published on Smashwords yet, but my book does Not contain any DRM when purchased from Amazon. I don't believe in DRM
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I didn't know you have a Calibre forum, but I'll check it out. I consider it invaluable software and want to help the creator as much as possible. It's rare to find someone willing to offer such a wonderful product at no cost (not including donations). And I am really impressed by how often it's updated.
Thanks again for the welcome.
D. B. Henson