PromptCraft Studio - Image Watermark Adder
Add a text or logo watermark to your photos in seconds. Choose the position, size, opacity and rotation, then download the result. Your image stays in your browser.
Everything happens on your device. Nothing is uploaded.
Free Image Watermark Adder: Add Text or Logo Watermarks to Photos Online
Photos you share online are easy to copy. A watermark puts your name, brand or logo on the image so people know who made it, and it discourages anyone from reusing your work without credit. Most watermark apps need an install or an account, and many upload your pictures to a server.
The PromptCraft Studio Image Watermark Adder works differently. Upload a photo, type your text or add your logo, adjust the look, and download the finished image. All of it runs inside your browser, so your private photos are never uploaded to the internet.
What can you add as a watermark?
| Watermark type | Best for | Tip |
|---|---|---|
| Text | Photographers, bloggers, and social media posts | Use your name, website or a copyright line such as © Your Name |
| Logo / image | Businesses, online shops, and brand content | Use a transparent PNG logo so no white box appears behind it |
| Tiled pattern | Preview images, proofs, and client samples | Lower the opacity so the photo is still easy to see |
How to add a watermark to an image
- Upload your image: Drag and drop a JPG, PNG, WebP, or GIF file into the upload area. On a phone, tap the box to pick a photo from your gallery.
- Choose text or logo: Type your watermark text and pick a color, or switch to the logo option and select your logo file.
- Adjust the look: Change the size, opacity, rotation and position. Turn on Tile across image to repeat the watermark over the whole photo. The preview updates instantly.
- Download: Choose PNG, JPG or WebP and click Download image. The watermarked file is saved to your device at the original resolution.
Tips for a professional watermark
- Keep it subtle: An opacity between 40% and 60% protects the photo without covering the subject.
- Pick a readable color: White works on dark photos and black works on bright ones. The shadow option helps on busy backgrounds.
- Use corners for branding: Bottom right is the most common spot and does not distract from the image.
- Use tiling for protection: A watermark across the middle is much harder to crop out than one in a corner.
100% Private and Secure
Many online watermark makers send your files to their servers. This tool uses HTML5 Canvas to draw the watermark locally on your device. Your personal photos, client work and unreleased designs stay private and are discarded as soon as you close or refresh the tab.
Frequently Asked Questions (FAQ)
Is this watermark tool free to use?
Yes. It is completely free, with no usage limits, no hidden fees, and no account registration required.
Does it work on mobile phones?
Yes. The tool is built for touch devices. Tap to choose a photo, adjust the sliders, and download the result straight to your phone.
Are my uploaded images saved anywhere?
No. Your images are never uploaded to our servers. The whole process happens locally inside your web browser.
Will the watermark reduce my image quality?
No. The tool keeps the original width and height of your photo. Choose PNG for lossless quality, or JPG and WebP for smaller files.
Can I use my own logo as a watermark?
Yes. Switch the type to Logo / image and upload a PNG, JPG, WebP or GIF. A PNG with a transparent background gives the cleanest result.
What image formats are supported?
You can upload JPG, PNG, WebP and GIF files. Animated GIFs are saved as a single still image.