Works over your desktop
Annotate websites, slides, documents, apps, video calls, and support screens.
Screen annotation software that stays simple
Penslide is screen annotation software for people who need to explain what is on their screen. It helps you draw, highlight, point, erase, copy, and capture without opening a separate editor.
Built for live work
Use it while presenting, teaching, training, recording, or helping someone remotely.
Small toolbar
The controls stay visible without covering the screen you are explaining.
Free download
Penslide Free includes the core annotation tools for Windows and Mac.
What screen annotation software should do
Good screen annotation software should make a live screen easier to understand. It should not force you to stop the call, take a screenshot, edit the image, and then send it back.
Penslide keeps annotation live. You mark the screen while the real app is still open, so the person watching can follow the exact thing you mean.
Penslide features for screen annotation
Penslide focuses on the tools people actually use during a real explanation. You can draw freehand, highlight text, add arrows, draw rectangles and circles, erase marks, undo mistakes, and clear the screen.
You can also save screenshots with drawings, save drawings only as a transparent PNG, or copy the marked screen to your clipboard.
- Pen and highlighter for fast markups.
- Arrow, rectangle, and circle tools for precise callouts.
- Laser pointer for live attention without permanent marks.
- Screenshot and clipboard tools for sharing visual notes.
- Color and thickness controls for readable annotations.
Who uses screen annotation software?
Teachers, trainers, support teams, product managers, YouTubers, and remote teams all need to explain screens clearly.
A lightweight tool is especially useful when you need to annotate many times in a day and do not want a heavy whiteboard app slowing you down.
FAQ
What is screen annotation software?
It is software that lets you draw, highlight, point, and write over your live screen while your normal apps stay open.
Is Penslide free screen annotation software?
Yes. Penslide Free includes the main tools for drawing, highlighting, erasing, pointing, and screen capture.
Can screen annotation software work across apps?
Penslide is designed to work over your desktop, so it can be used across browsers, slides, documents, apps, and calls.