💧 Add Watermark to Image
Add a text watermark to your photos online for free. Customizable font, size, opacity, position, and mosaic mode. Batch up to 10 images, 100% private.
Drag & drop images here (max 10)
Why add a watermark to your images?
A watermark is the most common method to protect images against theft and unauthorized reuse. Photographers, designers, bloggers, and e-commerce sellers use watermarks to assert ownership of their creations while sharing them online. A well-placed watermark deters copying without ruining the original image.
Text watermark vs. image watermark
There are two main types of watermarks:
- Text watermark — The most common approach. A text overlay (©, author name, website URL) is placed directly on the photo. It is quick to create, fully customizable (font, size, color), and requires no additional files.
- Image watermark — A semi-transparent logo or icon is placed on the photo. More visually appealing for strong brand identity, it requires a PNG file with transparency.
Our tool focuses on text watermarks, which cover 90% of common protection needs.
Choosing the right watermark position
Position is a trade-off between visibility and aesthetics:
- Bottom-right corner — The classic choice, discreet but easy to crop out. Suitable for portfolio previews.
- Center of the image — Impossible to remove without damaging the photo. Ideal for proofs sent to clients before purchase.
- Mosaic mode (diagonal repeat) — Text is repeated diagonally across the entire surface. Maximum protection, used by professional stock photo agencies (Shutterstock, Getty).
Opacity and readability: finding the right balance
An opacity of 30–50% is generally recommended. Below 20%, the watermark becomes invisible on certain backgrounds. Above 70%, it obscures the image content and harms presentation. Choose a color that contrasts with the dominant tones of the photo: white on dark backgrounds, black or dark gray on light backgrounds.
Copyright basics
In most jurisdictions, a photograph is protected by copyright from the moment of creation, without any formality. A watermark does not replace formal copyright registration but serves as a strong indicator of authorship. Adding the © symbol followed by your name and the year strengthens your claim in case of disputes.
Privacy and security
Our tool works entirely in your browser using the HTML5 Canvas API. Your images never leave your device — no data is sent to any server. Process up to 10 images simultaneously and download them individually or as a ZIP archive.
Frequently Asked Questions
How do I add a watermark to a photo online?
Drag and drop your image into the tool, customize the text, font, size, opacity, and position, then click Apply & download. No signup required.
Is the watermark visible on the final image?
Yes, the text watermark is permanently embedded in the exported image file. Set opacity between 30–50% for a discreet yet effective result.
Can I apply the same watermark to multiple images?
Yes, load up to 10 images. Settings (text, position, opacity) apply to all of them. Download individually or as a ZIP archive.
What is mosaic mode?
Mosaic mode repeats the text diagonally across the entire image surface, making cropping ineffective. It provides the strongest protection.
Are my images uploaded to a server?
No, all processing happens in your browser via the Canvas API. Your images stay on your device, ensuring complete privacy.
What font and size should I choose for a watermark?
Arial and Verdana offer good readability at all sizes. For an HD photo (1920×1080), a size of 36–48px is a good starting point. Increase for larger images.