I have a pdf that looks like this. I have acquired in legally via my university for studies, and want to convert it to mobi for Kindle reading. But as you can see it is stamped with copyright notices on the left and bottom. When I tried cropping them, I realized the information doesn't really go away, and the mobi result is:
*copyright text converted to mobi text every page
*actual book text inserted as images
Then I used Acrobat pro to "remove hidden information" after cropping.
However, now instead of the copyright text I get "g by pp" every page, and the result is the same. What can I dooooo?