I thought I was the only one experiencing this issue. Although my chromeVox doesn't seem to read anything with the native pdf viewer unless I upload it to google drive. Any idea as to why this is happening? For instance, I was reading an assignment for a class however it wasn't until I uploaded to Google drive that it worked before that chromeVox would just wrap to the bottom or top of the document as If nothing is on the page when there is in fact text within the document.
Is this the issue you are describing?