Annotate PDFs
Kami Chrome Extension - PDF and document annotation (free)
Annotate PDFs with Kami (Article)
Edit PDFs
Adobe Express - From Webdesk, open the Adobe Express app. Click the Plus Sign on the top left and choose "Quick Actions". Adobe Express Hotspot page.
Canva - From Webdesk, open the PISD Canva (SSO) app. Follow the instructions on How to edit PDFs in Canva.
PDF Candy - Free online PDF editor - https://pdfcandy.com/