[jeyjey]

Hi. I am new and I am a writer. I want to create ebook and submit them to Amazon marketplace. I used an online service to produce the ebook files. At the moment I want to change this way to do. I am creating the epub files with Calibre. I notice that on Amazon the epub is not well imported. For example I want to insert some ttf set and I want to show them in the book. When I browse the epub file I can notice that in some chapters the ttf fonts are not rendered. So I change the epub file with the CALIBRE Editor. After the file are changed the editor is closed and then the problem remains. So how can I save DEFinitively save and export my modified files with Calibre? Thanks.