PDF annotation

Teach from the PDFs you already have

Open a worksheet or slide deck and mark it up live, the way you would on a whiteboard — then keep the annotated copy for next year.

The problem

You've already made the good stuff — worksheets, past papers, slide decks. The trouble is a PDF just sits there. You can't write on it in front of the class, you can't pull thirty pairs of eyes to the one step that matters, and your notes are gone the moment the lesson ends.

Your PDFs, ready to teach from

Open any PDF in ClassKite and teach straight off it — write, highlight, add shapes, text and sticky notes, scroll through every page, and zoom in where it counts. Everything you mark saves automatically, so next year you open the same lesson with your notes still on it.

How it works

  1. 1

    Upload your file

    Drag in a PDF (export slide decks to PDF first). It opens exactly as it prints: no reformatting, nothing stripped out.

  2. 2

    Annotate as you teach

    Pen, calligraphy ink, highlighter, shapes, text and sticky notes — work through the page live, just like your whiteboard.

  3. 3

    Scroll and zoom

    Move through every page with continuous scroll; pinch or wheel-zoom to focus on a diagram or a single line.

  4. 4

    Keep your marked-up copy

    Your work saves automatically as you go and keeps working if the wifi drops, so you can reuse the annotated copy any time.

In the classroom

A Year 9 teacher opens last year's photosynthesis worksheet on the board, underlines the key term as the class reads it aloud, sketches the leaf cross-section in the margin, and scrolls to the diagram on page 3 — nothing printed. Next lesson, the annotated copy is right where she left it.

What you get

A full ink toolbox

Pen, calligraphy ink, highlighter, eraser, shapes (rectangle, ellipse, arrow), text boxes and sticky notes.

Natural, readable ink

Calligraphy ink gives a handwritten feel; the highlighter blends like the real thing.

Continuous scroll

Read and annotate a multi-page PDF in one smooth, scrollable view.

Crisp pinch-zoom

Zoom in to model a step, then back out — the page stays sharp.

Auto-save + offline-safe

Your marks save automatically and survive a reload or a dropped wifi connection.

Built for touch & stylus

Palm rejection and stylus-friendly controls feel right on a tablet or smart board.

Frequently asked questions

Can I use my own PDFs?

Yes — upload your existing PDFs and teach straight from them. Slide decks (PowerPoint, Keynote, Google Slides) work too — just export them to PDF first. There's nothing to rebuild.

What can I draw with?

Pen, calligraphy ink, highlighter, eraser, shapes (rectangle, ellipse, arrow), text boxes and sticky notes.

Do my annotations save?

Yes — they save as you work and keep working offline, so your notes aren't lost if the wifi drops.

Does it handle multi-page documents?

Yes — scroll continuously through every page, and pinch or wheel-zoom to focus on any detail.

Try ClassKite with your class

Start free as a teacher, or see how it rolls out across a whole school.

Free teacher plan — no credit card required