https://www.imore.com/best-pdf-apps-ipad
Easily mark up and annotate documents on your iPad with your Apple Pencil and these great apps.
bestpdfmarkupannotationapps
https://www.syncfusion.com/blogs/post/role-based-pdf-annotation-in-react
Nov 25, 2025 - Streamline team workflows with role-based PDF annotations in React secure, organized, and scalable collaboration made simple.
pdf annotationsecurerolebasedreact
https://chromewebstore.google.com/detail/e2logos-web-pdf-annotatio/hlbjpghkohlmfoghbnijlhipcaploabm
Collaboratively annotate, highlight, and tag web pages and PDF documents.
pdf annotationchrome storeweb