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Screenshot Annotation on Mac

Mark up screenshots in the TrarrenShot editor with rectangle, circle, line, arrow, text, pen, highlighter, pixelate, magnify, and step tools.

Last updated: May 2026

Screenshot Annotation

TrarrenShot annotation tools let Mac users mark up screenshots after One Shot with rectangle, circle, line, arrow, text, pen, highlighter, pixelate, magnify, and step tools before exporting.

How It Works

1

Start One Shot

Start One Shot from the menu bar, or use the default shortcut if you have not changed it.

2

Select the area

Drag to select a region, or press F for a fullscreen capture.

3

Add annotations

Choose rectangle, circle, line, arrow, text, pen, highlighter, pixelate, magnify, or step from the editor toolbar.

Available tools: rectangle, circle, line, arrow, text, pen, highlighter, pixelate, magnify, and step.

Privacy

Recognition, stitching, annotation, and export preparation run locally on your Mac.