Kami is an online document annotation and markup tool that allows users to highlight, underline, and strikethrough text in PDF and various other document formats. It also enables the addition of text boxes, shapes, and images. Kami seamlessly integrates with Google Drive and Google Classroom, making it convenient for teachers and students to collaborate on documents in real-time without the need for printing.

In summary, Kami provides an all-in-one document solution for teachers and students, facilitating efficient work with PDF and other formats.