Add Watermark to Image (Text & Logo)
Securely protect your photographs from unauthorized copying. Stamp custom text, copyright tags, or brand logos with adjustable opacity in your browser.
About Image Watermark Tool Online Free
SizeSnap Image Watermark helps photographers, content creators, real estate agents, and e-commerce sellers safeguard their intellectual property. Easily stamp copyright notices, brand logos, or confidential sample text onto high-resolution photos before posting them on social media or sending proofs to clients.
How to Use Image Watermark Tool (Step-by-Step)
- Upload Base Image: Drag and drop your JPG, PNG, or WebP photo into the canvas.
- Choose Type: Select Text Watermark (enter name, date, website) or Logo Watermark (upload transparent PNG).
- Customize Appearance: Adjust font size, text color, transparency opacity (0–100%), and corner placement.
- Download Watermarked Photo: Export your protected image in full resolution with zero quality loss.
Key Features & Advantages
Text & Transparent Logo Support
Seamlessly overlay typography with custom fonts or blend high-resolution transparent PNG brand emblems.
Adjustable Opacity & Blending
Dial in subtle, non-intrusive 30% transparency or bold anti-theft proof stamps.
Multi-Position Corner Anchors
Pin watermarks to Top-Left, Top-Right, Bottom-Left, Bottom-Right, or Center with custom pixel offsets.
100% Client-Side Security
Your photos and proprietary brand assets are never transmitted across the web.
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Frequently Asked Questions
How do I add a transparent logo watermark to my photos?
Upload your base photo into SizeSnap Image Watermark. Switch to "Logo Watermark" mode, upload your transparent PNG logo, adjust size and opacity sliders (e.g. 40%–60%), position it in the corner or center, and click Download.
Can I add repetitive diagonal tiled watermarks across the whole image?
Yes! Enable the "Tile Watermark" toggle to repeat your copyright name, website URL, or "CONFIDENTIAL / SAMPLE" stamp across the entire photo in a 45-degree diagonal pattern.
Does watermarking reduce the quality of the original image?
No. The watermark is composited directly onto the original pixel grid at full resolution, keeping the underlying image razor-sharp.
Are my copyrighted photographs uploaded to external servers?
No. All watermarking operations happen locally inside your browser memory. Your unreleased client shoots and commercial images are never transmitted or stored.