What do you mean with "approved" pdf's? And what should be an "unapproved" one?
I'm looking for something to read--all--PDFs (I'm afraid some brands/models might restrict only approved PDFs, looking for a signature or the like), text files and possibly word processor files. It needs to have a long charge, 10 hrs min. Is it possible to have a 9+" eReader for 150 CAD (113.63 USD at 2018-11-26 11:21 UTC (you may want to make a new conversion if this post is > 1 week old)) ?
I'm open to acquiring a used eReader if there's a way to properly test it relatively soon after the purchase; as used sites usually give short time to test them (ie: 30 days).
Thank you kindly