We have updated the Preview viewer to a newer version of PDF.js ,which enhances performance for faster file rendering.
Additionally, this upgrade is a major enhancement to accessibility, making it easier to read documents with a screen reader. The accessibility improvements include:
- In-document semantics, including Headings, Lists, Tables
- Improvements to how hyperlinks are represented in a document to a screen reader
- Improvements to the text structure of Preview documents to make reading smoother with a screen reader