Sometimes you need to circle something on a PDF. Or draw an arrow pointing to the one line that matters. Or just scribble a quick note in the margin because you know you'll forget later.
That's exactly why we built drawing tools into Helperbird's PDF Reader. No extra apps, no downloading and re-uploading files. You open the PDF, pick up a pen, and draw.
What you can actually do
When you open any PDF in Helperbird, there's a Draw button in the toolbar. Click it and you get access to everything you'd expect from a proper drawing tool.
There's a freehand pen for when you just need to scribble or underline something quickly. Rectangles and ovals for highlighting sections. Lines for connecting ideas. And arrows for pointing at the thing you need someone else to look at.
You can pick your color from a full palette, adjust the stroke width, and switch between tools without losing your work. Everything stays on the page exactly where you put it.
Move it, delete it, undo it
We've all drawn a circle in the wrong spot. With the Select tool, you can click any drawing, drag it somewhere else, or just delete it. Keyboard shortcuts work too — arrow keys to nudge things around and Delete to remove them.
There's also an undo button if you just need to step back. No stress.
It saves when you download
This was important to get right. When you download the annotated PDF, all your drawings are baked into the file. You can share it with someone else and they'll see everything you marked up. No special software needed on their end.
Who is this for
Honestly, it's for anyone who works with PDFs. Students marking up lecture slides. Teachers annotating assignments. Researchers circling data in papers. Professionals reviewing contracts or proposals.
If you've ever printed a PDF just so you could draw on it with a pen, this is for you.
Works with everything else in Helperbird
The drawing tools sit alongside all the other PDF features you might already be using. Text-to-speech still works while you're marking things up. You can add sticky notes and annotations alongside your drawings. The Immersive Reader is right there if you need it. And if you need to pull text out of a scanned document, OCR and extract text handles that.
It all works together in the same PDF Reader, which was the whole point.
Accessibility built in
Every drawing tool, color swatch, and action button has proper labels for screen readers. You can tab through the toolbar, use arrow keys to move shapes, and delete with the keyboard. We made sure the drawing tools are accessible from the start, not as an afterthought.
Give it a try
The drawing tools are live now in the latest version of Helperbird. Open any PDF, click Draw, and start marking things up. If you want a full walkthrough, we've got a step-by-step guide that covers everything including keyboard shortcuts.
And if you haven't tried the PDF Reader yet, now's a great time. It's come a long way.
