OnlineImageTools.net

Watermark Images Online

Add text or logo watermarks to protect your images. Batch process hundreds of photos securely in your browser.

Watermark Images

Upload multiple images to add logo or text

Supports JPG, PNG, WEBP

Why Watermark Your Images?

Watermarking is essential for photographers, artists, and businesses sharing content online. It asserts your copyright, discourages unauthorized use (theft), and builds brand recognition by ensuring your name stays attached to your work.

Text vs. Logo Watermarks

Text Watermark

Best for quick copyright notices (e.g. "© 2025 Name"). Easy to customize font, color, and opacity directly in the tool.

Logo Watermark

Best for branding. Upload your transparent PNG logo to overlay your official brand identity on product photos or artwork.

Tiled Watermark for Strong Protection

A single watermark in the corner is easy to crop out. For maximum protection, enable Tiled Mode. This repeats your watermark across the entire image, making it extremely difficult for thieves to remove without destroying the image quality.

Frequently Asked Questions

How do I add a watermark to multiple images?▼
Simply drag and drop all your images into the tool. Configure your watermark style once (text or logo), and click 'Download All' to apply it to every file automatically.
Will watermarking reduce image quality?▼
We re-encode the image to burn in the watermark, but we use high-quality settings (92% quality for JPG) to ensure minimal visual loss.
Can I add a logo watermark with transparency?▼
Yes! Upload a PNG logo with a transparent background for the best results. You can adjust the opacity and scale to blend it perfectly.
Are my photos uploaded to a server?▼
No. All watermarking happens locally in your web browser using HTML5 Canvas. Your original photos never leave your device.
Can I remove a watermark later?▼
Watermarks are permanent 'baked-in' changes. You cannot remove them from the processed file easily. Always keep your original files safe!

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