ISTR Greg Doensch (who is the Prentice Hall person responsible for K&R)
once telling me that no electronic version of any edition of K&R legally
exists. Either he's wrong or you are
Checking, I see that Recording for the Blind & Dyslexic has it
on -audio- CD, and that there is a braille copy available.
Checking Canadian law, I see that
32. (1) It is not an infringement of copyright for a person, at the
request of a person with a perceptual disability, or for a non-profit
organization acting for his or her benefit, to
(a) make a copy or sound recording of a literary, musical,
artistic or dramatic work, other than a cinematographic work, in
a format specially designed for persons with a perceptual
disability;
http://laws.justice.gc.ca/en/ShowDo...ga:l_IV//en?page=3&isPrinting=false#codese:32
The permission of the publisher would not be needed in this case.