How to Add a Watermark to a Screenshot on Mac (2026)
Add a text or image watermark to any Mac screenshot in seconds with Pizazoo. Free, on-device, non-destructive. Step-by-step guide.
You shouldn’t need Photoshop to put your name on a screenshot before posting it. Here’s how to do it on Mac in two minutes.
Step-by-step
Step 1 — Open the screenshot in Pizazoo
Find the screenshot in your Pizazoo library and press Return to open the markup editor.
Step 2 — Pick the Watermark tool
Click Watermark in the markup toolbar. Choose Text watermark (type a string) or Image watermark (drag in a PNG with transparency).
Step 3 — Configure opacity, position, tile mode
Drag the watermark to the corner you want, set opacity (10–30% is typical for "visible but not annoying"), and pick Single or Tiled coverage. Tiled is harder to crop out if you’re trying to deter reposting.
Step 4 — Save
Press Save. The watermarked version is written beside the original — the source screenshot stays untouched and remains in your library.
Tips
- For social-media screenshots, a corner watermark at ~20% opacity is enough to signal ownership without being ugly.
- For "do not screenshot" use cases (early design proofs, client-only previews), use Tiled coverage at higher opacity — much harder to crop out.
- Pizazoo also supports signatures if you want a handwritten mark instead — see the signature guide.