After reading this,
we know that duplicate contents are heavily penalized.
What about the case that if someone pubilsh the same Ebook or the same PDF article on multiple vendors's websites.
Would the ebook or pdf article will be pernalized as a duplicate contents too ?
For practical example, I can upload and sell my book "Love Story of XYZ" in Amazon KDP, Apple Books, Scribd, and another 10 more vendors's sites.
or I can upload my pdf article " Manual for XYZ car" on slideshares, scribd, pdfshare, and another 10 mroe vendors's sites.
How this ebook and pdf articles are compared to the typical website contents duplication ?