Add Watermark to Image Free
Add text or logo watermarks to any image online — free, instant, and fully browser-based. Control position, opacity, size, color, and rotation. No signup, no upload to servers. Your images stay on your device.
3 Simple Steps
Upload Your Image
Select any JPG, PNG, or WebP image from your device. It loads instantly — no server upload needed.
Customise the Watermark
Choose text or logo mode. Adjust position, opacity, size, color, and rotation. Preview updates live.
Download Full Resolution
Hit Download and get your watermarked image at original quality — ready to use anywhere.
Why Use ConvertLinx Watermark Tool?
Text & Logo Watermarks
Add your brand name, copyright notice, or upload a PNG logo. Both modes give you full control over size, position, color, opacity, and rotation.
Protect Your Work
Photographers, designers, and content creators use watermarks to protect images from unauthorised use and to keep their brand visible when photos are shared.
Full Resolution Output
Canvas API processes your image at original dimensions. No resizing, no quality loss — the downloaded file is full resolution and ready for professional use.
Why Add a Watermark to Your Images?
A watermark is a visible text or logo overlaid on an image to identify its owner, protect copyright, or promote a brand. Photographers watermark portfolio shots to prevent theft, businesses watermark product photos before sharing them online, and content creators add their handle or logo to social media visuals so their work stays attributed even after it is shared or downloaded.
Adding watermarks used to require desktop software like Photoshop or Lightroom. Our free browser-based tool does the same job in seconds — no installation, no subscription, and your images never leave your device.
Text vs Logo Watermark — Which Should You Use?
Text watermarks are great for copyright notices, photographer names, website URLs, or social media handles. They are quick to set up and easy to read at any size. Use a contrasting color and moderate opacity so the watermark is visible without overpowering the image.
Logo watermarks work best for businesses and brands that want their visual identity on every image. Upload a PNG with a transparent background for the cleanest result. Position it in a corner at around 15–20% of the image width for a professional, unobtrusive look.
Common Use Cases for Adding Watermarks
Who Should Use This?
Features
Best Uses for an Online Watermark Tool
Frequently Asked Questions
Is this watermark tool free?
Yes — completely free with no signup required. Add watermarks to unlimited images at any time.
Will the original image quality be affected?
No. The tool processes your image at full original resolution using your browser's Canvas API. Output quality is preserved at 95% for JPEG and lossless for PNG.
Can I use my logo as a watermark?
Yes — switch to the Logo tab and upload any PNG or image file as your watermark logo. You can control the size and position just like text watermarks.
What image formats are supported?
JPG, JPEG, PNG, and WebP images are all supported for uploading. Output is saved in the same format as the original — JPG stays JPG, PNG stays PNG.
Can I control where the watermark appears?
Yes — choose from 9 position options including all four corners, all four edge centers, and the exact center of the image.
Can I rotate the watermark text?
Yes — use the Rotation setting to tilt the watermark at any angle from 0 to 360 degrees. Diagonal watermarks are popular for document protection.
Is my image uploaded to any server?
No — everything runs entirely in your browser using the Canvas API. Your images never leave your device. Full privacy guaranteed.
Can I add a transparent watermark?
Yes — use the Opacity slider to control how visible the watermark is. Lower opacity creates a subtle, semi-transparent watermark that does not distract from the image.
Does it work on mobile?
Yes — works on iPhone, Android, tablets, and desktops. The layout adapts to any screen size and the canvas processing works on all modern mobile browsers.
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