Hi mblumenthal,
Please make the following changes to the below file.
wppdf/css/book.css
go to #lp-book this line and you will find the below code.
background-image: url(“../images/texture.png”);
background-color: #404040;
position: absolute;
width: 100%;
height: 100%;
Just add the below line
padding: 100px;
Let me know if this works
