Draw live
Use pen, shapes, arrows, and highlighter tools over your real screen.
Screen annotator for clear live explanations
Penslide works as a simple screen annotator that floats over your desktop. Use it when you need to mark a button, highlight text, point to a problem, or explain a screen while people are watching.
Stay quick
Switch tools, undo, erase, clear, or reset without leaving the flow.
Capture notes
Save the marked screen or copy it to the clipboard when you need a record.
No account needed
Download Penslide Free and start annotating without sign-up.
What is a screen annotator?
A screen annotator lets you draw directly over your live desktop. It is useful when words alone are too slow or too vague.
Instead of telling someone to look near a corner of the screen, you can circle the exact item. Instead of describing a line of text, you can highlight it while everyone watches.
Why Penslide is useful as a screen annotator
Penslide keeps the controls small and visual. The toolbar stays nearby, but it does not take over your screen.
It is made for practical annotation during real work, not for creating a separate whiteboard document.
- Mark slides, browsers, PDFs, apps, and desktop windows.
- Use keyboard shortcuts for common tools like pen, highlighter, arrow, eraser, and screenshot.
- Clear drawings quickly when you move to the next topic.
- Use desktop mode when you want clicks to pass through to the app underneath.
Best uses for a screen annotator
Teachers use screen annotators to keep students focused. Support teams use them to guide customers. Product teams use them to explain UI changes during demos.
If you often share your screen and say things like "look here", a screen annotator can make the explanation faster and easier to follow.
FAQ
Is Penslide a screen annotator?
Yes. Penslide lets you annotate your screen with pen, highlighter, shapes, arrows, laser pointer, eraser, screenshots, and clipboard tools.
Can I use it during a screen share?
Yes. Penslide works over your desktop, so it can be used during meetings, lessons, demos, and support calls.
Does it work without an account?
Yes. Penslide Free does not require account creation.