Read & Write Google Chrome Extension
The Read Write Extension for Chrome provides support tools for the webpages and common file types accessed through Google Drive including Google Docs, Google Slides, PDFs, and ePubs. Several popular UDL tools can be accessed on the toolbar: text-to-speech, speech-to-text, highlighting, audio dictionary, picture dictionary, annotate over PDF (Orbit Note), and screenshot reader.
A How To Overall Guide for Read and Write
Using Read and Write on the Web
Using R/W PDF Reader (now called ORBIT Reader) with Schoology