How to Add a Watermark to Images Online Free

Protect your photos and brand your work with custom text watermarks. Everything you need to know about watermarking images effectively.

January 20, 2026 6 min read Aashish Nepal

Why Add Watermarks?

Watermarks serve two key purposes: protection and branding.

Protection: Discourage unauthorised use of your photos by making them traceable back to you
Branding: Every image shared online becomes free advertising for your brand or website
Attribution: Make sure social media shares credit the original creator

Text watermarks — your name, website URL, copyright notice, or brand name. Clean, professional, and the most common choice.

Logo watermarks — overlaying a semi-transparent PNG logo. Requires an existing logo file.

Our Watermark Image tool lets you add a custom text watermark in seconds:

No signup required. Your image is never stored.

Corner placement: Bottom-right is most common. Position the watermark over a high-contrast area for visibility.

Centre placement: A large, low-opacity watermark across the centre provides maximum protection but can obscure the subject.

Opacity: 20–40% opacity is a good balance — visible but not distracting for legitimate viewers.

Font size: Large enough to read when the image is shared at full size on social media (at least 24px for a 1080px wide image).

Determined users can attempt to clone-stamp or AI-erase visible watermarks. For maximum protection:

Place the watermark over complex image areas (not flat sky or solid backgrounds)
Use higher opacity
Consider a full-image semi-transparent overlay for high-value work
Always retain an un-watermarked original

Currently our tool supports text watermarks. For logo watermarks, use design tools like Canva or Photoshop.

No — the watermark is composited at full image quality. The result is identical in quality to the original.

Technically yes, but it raises the effort significantly and establishes a clear legal record of your ownership.

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