The watermarks in their PDF files are quite ugly: they put "This book has been licensed to XYZ" on the left side of each page. Since those lines are seperate te

The watermarks in their PDF files are quite ugly: they put "This book has been licensed to XYZ" on the left side of each page. Since those lines are seperate text objects, they are also trivial to remove. For $1 ugly watermarks are okay, but the regular price of many of those ebooks is more than $100. There must be a better way to do this... Update: the watermarks are actually in their own layers that can be hidden in Evince. Nice, I didn't expect that! On the other hand, the PDFs lack a TOC.