💧 Image Watermark
Add a custom text watermark to your image directly in your browser.
Choose your watermark text, size, color, transparency, position, image format, and quality, then download the finished image.
💧 Add a Text Watermark
What Is an Image Watermark?
An image watermark is text or another visual mark placed over an image to identify its owner, creator, business, website, or source. Watermarks are commonly used for branding, attribution, copyright notices, previews, product photography, and images shared online.
This Resouria tool adds a text watermark directly to your image using your browser's canvas technology. You can control the text, size, color, transparency, position, output format, and image quality before downloading the result.
How to Watermark an Image
- Select the image you want to watermark.
- Enter the text you want to display over the image.
- Choose an appropriate font size and text color.
- Adjust the opacity to make the watermark subtle or prominent.
- Select where the watermark should appear.
- Choose JPG, PNG, or WebP as the output format.
- Adjust quality when using a format that supports browser quality settings.
- Click Add Watermark.
- Review the preview and download the finished image.
Choosing the Right Watermark Position
The best position depends on the purpose of the watermark. A corner watermark is normally less distracting and works well for photographs, social media images, and business branding. A centered watermark can be more difficult to remove by simply cropping the edges, but it can also interfere more with the image.
- Top or bottom corners: Good for subtle branding.
- Center: Useful when preventing simple cropping is important.
- Center-left or center-right: Useful when the corners contain important image details.
Understanding Watermark Opacity
Opacity controls how strongly the watermark appears over the original image. A value of 100% makes the selected watermark color fully visible. Lower values allow more of the original image to show through.
For photographs, an opacity around 30% to 60% can often provide a reasonable balance between visibility and readability. However, the ideal value depends on the background, watermark color, and purpose of the image.
Choosing an Image Format
| Format | Useful For | Important Consideration |
|---|---|---|
| JPG | Photographs and general-purpose images. | Uses lossy compression and does not preserve transparent backgrounds. |
| PNG | Graphics, screenshots, and images where lossless output is useful. | Files can be larger than JPG or WebP. |
| WebP | Websites and modern web applications. | Often provides efficient file sizes, but compatibility should be considered for older software. |
Watermarking Tips
- Use a watermark that is readable but does not unnecessarily cover important content.
- Choose a color that contrasts with the background.
- Use lower opacity when the watermark is primarily for branding.
- Use higher opacity when clear ownership information is more important than visual subtlety.
- Consider using your website address or business name if the image will be published online.
- Always inspect the preview before publishing or distributing the watermarked image.
Common Uses for Image Watermarks
- Protecting photographs before sharing them online.
- Adding company or business branding to images.
- Identifying images created by a photographer or designer.
- Branding product photographs for online stores.
- Adding website addresses to promotional graphics.
- Preparing preview images for clients.
- Identifying images shared on social media.
- Adding copyright or ownership information.
Watermarking vs. Image Editing
A watermark is a permanent part of the generated image. Once you download the watermarked version, the text has been rendered into the image pixels. It is therefore a good idea to keep your original image separately if you expect to need an unwatermarked version later.
This tool is designed specifically for adding a simple text watermark. It does not provide advanced photo-editing features such as object removal, background replacement, layer management, or professional color correction.
Privacy and Local Processing
The watermarking process takes place in your web browser. The image is loaded into browser memory and drawn onto an HTML canvas before the watermarked image is generated. The tool does not need to upload the original image to the Resouria server.
Because the processing happens locally, performance can depend on your device's available memory and browser. Avoid closing or refreshing the page while processing a very large image.
Limitations to Keep in Mind
- Very large images may require significant browser memory.
- Animated GIF images are not preserved as animations when rendered through a normal canvas workflow. The generated output is a static image.
- EXIF and other original image metadata may not be preserved in the generated file.
- JPG output cannot preserve transparent areas, so transparent regions are rendered against a white background.
- PNG generally does not respond to the quality slider in the same way as JPG and WebP.
- The tool adds text using a standard browser font and does not provide custom font-file selection.
- A watermark can discourage unauthorized use, but it cannot guarantee that an image will not be copied or modified.