Add Watermark to Image — Free Online Photo Watermark Tool
Add text or logo watermarks to images — customize font, color, opacity, and position.
Drag & drop files here
or
PNG, JPG, WebP — Multiple files supported
How to Use Add Watermark to Image
Upload a photo or image (PNG, JPG, WebP)
Switch between Text or Image/Logo mode and customize your watermark
Download the watermarked image as a high-resolution PNG
Your files never leave your browser
No upload wait time. Results in seconds
No daily limits, no file count limits
No account, no subscription, no fees
Add Watermark to Image — Protect Your Photos Online
Adding a watermark to an image is the most effective way to protect your photographs, designs, and digital artwork from unauthorized use. Whether you are a photographer watermarking client previews, a designer sharing mockups, or a content creator protecting social media assets — Zendrove's free watermark tool lets you add text or logo overlays directly in your browser with zero uploads.
Text Watermark vs. Logo Watermark
Choose Text mode to type a custom watermark — your name, brand, copyright notice, or "DRAFT" / "CONFIDENTIAL" stamp. Customize the font family (Arial, Inter, Georgia, Impact, and more), font size, color from 8 preset swatches or a custom picker, text stroke, and opacity. Choose Image mode to upload a PNG or SVG logo and overlay it on your photo. Both modes support center placement, bottom-right positioning, and the powerful Grid Effect that tiles your watermark diagonally across the entire image — the most effective protection against cropping.
Add Watermark to Photo — Best Practices
Professional photographers typically use 20–40% opacity for watermarks — visible enough to deter theft while keeping the image clearly viewable. For legal documents, draft contracts, or confidential material, increase opacity to 50–70%. Use a contrasting color (white on dark images, dark on light images) and enable the tiled grid for maximum protection.
How to Add Watermark in Word, PowerPoint, and Google Docs
While this tool focuses on image watermarking, many users also need to add watermarks to Word documents, PowerPoint presentations, and Google Docs. In Microsoft Word, go to Design → Watermark → Custom Watermark to add text or picture watermarks. In PowerPoint, insert a text box or image on the slide master (View → Slide Master) for a watermark that appears on every slide. Google Docs does not have a native watermark feature — the workaround is to insert a faded image behind text using Insert → Drawing. For a faster alternative, use Zendrove's watermark tool to stamp your images before inserting them into any document.
Why Watermark Your Images?
Copyright watermarks establish visual ownership of your work. They deter unauthorized downloads, screenshot theft, and social media reposts. For businesses, watermarks on draft documents and preview images prevent clients from using unpaid work. Tiled watermarks are especially effective because they cannot be cropped out without destroying the image.
Explore More Image Tools
After watermarking, compress your images for faster web loading, resize them for social media dimensions, or remove the background for transparent product shots. Browse all free image tools on Zendrove.
Frequently Asked Questions
How do I add a watermark to an image for free?
Upload your image to Zendrove's free watermark tool, choose Text or Logo mode, set your desired font, color, opacity, and position, then click Download. The entire process runs in your browser — no signup, no upload, no limits.
Can I add a logo watermark to a photo?
Yes — switch to Image mode, click "Select Logo" to upload your PNG or SVG logo, then adjust the size and opacity sliders. You can place the logo in the center, bottom-right corner, or tile it across the entire image for maximum protection.
What is the best opacity for a watermark?
For professional results, use 20–40% opacity. This makes the watermark visible enough to deter theft while keeping the underlying image clearly viewable. For draft or confidential stamps, use 50–70% for higher visibility.
Can I tile a watermark across the entire image?
Yes — enable the "Apply Grid Effect" toggle. This repeats your text or logo in a diagonal grid pattern across the full image, which is the most effective protection against cropping or selective removal.
Is my image safe when I add a watermark here?
100% safe. Zendrove uses the HTML5 Canvas API inside your browser. Your original image never leaves your device — nothing is uploaded, processed remotely, or stored. This makes it ideal for watermarking sensitive or client-facing photographs.
What image formats are supported?
You can upload PNG, JPEG, and WebP images. The watermarked output is always downloaded as a high-quality PNG file that preserves the original resolution of your source image.
How do I add a watermark to a PDF?
This tool currently supports image files (PNG, JPG, WebP). For PDF watermarking, you can use our PDF tools to first convert PDF pages to images, watermark them, then recombine. A dedicated PDF watermark tool is planned for a future update.