How to Add Watermarks to Images Online — Free Text & Logo Watermark Tool
You've taken great photos, created original artwork, or designed compelling graphics. Before you share them online, there's one question: how do you protect your work and make sure it can be traced back to you if it gets used without permission? The answer is watermarking — and the Add Watermark tool on ConvertLinx makes it quick, free, and flexible.
How to Add a Watermark in 3 Steps
- Go to Add Watermark and upload your image
- Choose text watermark (type your text, font, size, color) or image watermark (upload your logo PNG)
- Position the watermark, set opacity, then download your watermarked image
Text Watermarks vs. Image/Logo Watermarks
Text watermarks: Type your name, website URL, "@handle", copyright notice, or any text. Quick to set up — no separate logo file needed. Clean and professional for photography. Works well when your brand identity is primarily your name or website.
Image/Logo watermarks: Upload a transparent PNG of your logo. More visually polished for established brands. Instantly communicates brand identity without text. Requires a good transparent PNG of your logo — use the Image Converter to convert logo files if needed.
Watermark Placement and Opacity Best Practices
Opacity: The classic debate is between visible and subtle. A 100% opaque watermark is easy to see but might distract from the image. A 20% watermark is barely visible on clean areas but might disappear on complex backgrounds. The sweet spot for most photography: 30-50% opacity, positioned in a corner or across the center.
Position: Corner placement (bottom-right is most common) is least intrusive but easiest to crop out. Center or diagonal placement across the full image is more tamper-resistant but more visually disruptive.
For client previews and proofs: Use a high-opacity diagonal watermark across the center. The goal is to make the image usable for approval but not appropriate for final use before payment.
For portfolio and social sharing: Use a subtle corner watermark with your URL. The goal is brand attribution, not preventing download — people who want to steal images will do so regardless; watermarks are primarily for attribution and recognition, not true copy protection.
Who Needs Watermarks?
Photographers: The most common use case. Every image shared online should be watermarked with your name and/or website. Even on Instagram, where downloads are technically disabled, screenshots are trivial. A watermark ensures every share and repost carries your brand.
Graphic designers and illustrators: Portfolio pieces shared for client review. Mockups and concepts that haven't been paid for yet. Social media portfolio posts.
Stock photo and asset creators: Preview versions of digital products and assets before purchase.
Content creators and bloggers: Branded infographics, charts, and visual content that might be shared across social media. A watermark with your URL creates automatic link attribution when people share your visual content.
Businesses: Product photos, marketing images, and branded visual content shared across channels.
Do Watermarks Actually Protect Images?
Honest answer: they're not perfect protection. A determined person with Photoshop can remove visible watermarks. AI-powered inpainting tools can remove even well-placed watermarks automatically.
What watermarks actually do:
- Deter casual theft: Most image misuse is opportunistic, not deliberate. A visible watermark stops the casual "download and use" scenario.
- Ensure attribution: Even when images are shared legitimately, watermarks keep your brand visible and direct interested viewers to your work.
- Create legal evidence: A watermarked image with a clear copyright notice strengthens your position if you ever need to pursue a DMCA takedown or copyright claim.
- Build brand awareness: Every share of a watermarked image is a micro-advertisement for your brand.
For true technical protection (preventing downloads entirely), a combination of server-side protection, low-resolution previews, and right-click disabling is needed — but none of these are perfect either. Watermarks remain the best practical tool for most creators.
Related Tools on ConvertLinx
- Image Compressor — compress your watermarked images for web sharing
- Image Resizer — resize images to platform specs before watermarking
- Rotate & Flip Image — fix orientation before adding your watermark
- Signature Maker — create a handwritten signature to use as a personal watermark
Brand your images with text or logo watermarks — free, instant, no signup.
Add Watermark Free →