I want to ask where I can find/buy in pdf format bilingual beginner-intermediate level german novels similar to penguin parallel text novels. I searched but could not find a good resource.
About.com provides a list of dual-language books: LINK.
Additionally, you can find some children's books at a site like this.
Also, I know of at least one site with free PDF children's books (only German, but pretty basic, LINK).