Desktop annotation tool for meetings, lessons, and support

Penslide lets you annotate your desktop without moving your work into another app. Draw over the screen you already have open, then clear the marks when you are done.

Annotate the real desktop

Mark the app, page, slide, document, or setting that is already on screen.

Use it during calls

Explain live during Zoom, Teams, Google Meet, tutorials, webinars, and support sessions.

Keep the screen readable

Use highlighter, pen size, and colors to make your point clear.

Save or copy

Keep marked screens as images or copy them straight to the clipboard.

Why use a desktop annotation tool?

A desktop annotation tool is helpful when the thing you need to explain is already on your screen. You do not want to stop, take a screenshot, edit it, and then return to the call.

Penslide lets you mark the desktop live. You can point to a button, draw a path, circle a setting, or highlight a sentence while the original window remains visible.

What makes Penslide different?

Penslide is designed to feel light. The toolbar is small, the actions are direct, and the tools match common desktop explanation tasks.

You can switch from desktop mode to drawing mode, mark the area, then clear everything and continue working normally.

  • Desktop mode lets clicks pass through to the app underneath.
  • Pen, highlighter, rectangle, circle, arrow, and laser pointer cover most explanation needs.
  • Undo, eraser, clear, and delete reset keep the desktop clean.
  • Screenshots and clipboard tools help you share what you marked.

Desktop annotation examples

Use Penslide during a software demo to show exactly which button changed. Use it during remote support to circle a setting. Use it during a lesson to underline text or draw over a diagram.

The point is simple: when people can see the mark on the screen, they understand faster.

FAQ

What is a desktop annotation tool?

A desktop annotation tool lets you draw and highlight over your live desktop while your normal apps stay open.

Can Penslide annotate any desktop window?

Penslide is built as a screen overlay, so it can mark browsers, slides, documents, apps, and many other desktop windows.

Can I remove the drawings quickly?

Yes. You can erase strokes, undo the last stroke, clear the screen, or delete and reset the canvas.