  People read digital documents on a daily basis to share, exchange, and
understand information in electronic settings. However, current document
readers create a static, isolated reading experience, which does not support
users' goals of gaining more knowledge and performing additional tasks through
document interaction. In this work, we present our vision for the next-gen
document reader that strives to enhance user understanding and create a more
connected, trustworthy information experience. We describe 18 NLP-powered
features to add to existing document readers and propose a novel plug-in
marketplace that allows users to further customize their reading experience, as
demonstrated through 3 exploratory UI prototypes available at
https://github.com/catherinesyeh/nextgen-prototypes
