The PDF Annotation Tools Teachers Actually Use in Class
Most marketing for a PDF annotation tool for teachers shows someone writing on a document alone at a desk. In front of a class the needs are different: your writing has to appear on every pupil's screen as you write it, everyone has to be on the same page, and the page has to be readable from the back of the room. This post looks at what matters when the annotation happens in a lesson.
What a generic markup app misses in a live lesson
A standard PDF markup app lets you draw, highlight and save. That is fine for prep. The moment you are teaching, three things break: your pupils cannot see what you are writing in real time, half of them have drifted to a different page, and the marks live in a file nobody else has open.
ClassKite was built for teaching live. You upload a PDF (a worksheet, a past paper, or a slide deck exported as PDF) and teach from it on the Smart Board with live pen annotation that students can follow on their own devices. The ink responds to pen pressure and has a calligraphy style, and the document scrolls in one continuous vertical view, so you are not jumping page by page mid-explanation. There is more on this in our piece on teaching from your PDFs on an interactive whiteboard.
The features that earn their place in the classroom
- Streamed annotation. What you draw on the board appears in pupils' board view as you draw it, so they follow your working as well as the finished answer.
- Follow-me paging. Turn the page and pupils on the same PDF turn with you, so nobody is left asking which question you are on.
- Full-screen present mode. The interface steps aside and the page fills the board.
- Pressure and calligraphy ink with continuous scroll. These are on the free Teacher Basic plan.
With Smart Board teaching, the annotated page is your board for the whole lesson. The wider workflow is in our complete teacher guide.
Turn the same pages into practice
A markup app stops at the page. In ClassKite, once you have taught from the PDF, you can write questions on the same material. Build them by hand, bulk-import the question bank spreadsheet, or have ClassKite's AI draft questions for you to review in a closed practice. The AI drafts questions only and does not read the PDF's contents. Run them as live practice or self-practice, and answers mark themselves the moment a pupil submits. Pupils join free with a join code in their browser, with no app or paid account. Our walkthrough on creating digital practice from a PDF takes it step by step.
Start teaching from your PDFs free: upload a document and write on it live in a few minutes.
Frequently asked questions
Do my pupils see my annotations as I write them?
Yes, in their board view. Pupils who switch to it see your pen strokes as you write, and follow-me page sync keeps pupils on the same PDF on the page you are teaching from.
Is live PDF annotation free?
Yes. PDF annotation and Smart Board teaching, including pressure ink and continuous scroll, are on the free Teacher Basic plan, with limits on the size and length of each PDF. Teacher Plus and the School plan allow larger files and add class analytics. See what each plan allows.
Does ClassKite mark the questions for me?
Yes. All six question types (multiple choice, true/false, fill-in-the-blank for a word or a number, matching and jumbled sentence) mark themselves on submit. Per-session and per-student reports follow, and the Gradebook adds the practices up into a grade.
Related reading: Interactive whiteboard: teach from your PDFs, How to create digital practice from a PDF, and our PDF annotation feature page.