Dharma is usually donation-ware. There is a really valuable dharma book that my friend is in no financial condition to buy (it is $100) but he also does not want to download it for free from me. Is there any sutta which clearly states that dharma is donation-ware and that it is OK to redistribute dharma content even if it is copywritten?

Is copying a Dhamma book in hard copy and converting it into a pdf to read on my kindle a breach of the second precept? I am planning only to read it myself and not give it to anyone. I also thought that Dhamma material should be free. Why are people amongst them well known monks and nuns charging for dhamma material?

I am writing a romance book. In it one of my character's recites a portion of the Dhammapada. If I publish my book, will I be violating any copyright laws? How would I go about getting permission to put the quote in my book?