Watermark Image, Video, PDF at scale.
The easiest way to process one or 10,000 files. Drop your media below or use our API for high-volume batch watermarking. Built for developers and creators.
Upload Image, Video, or PDF
Click here to open the processing workspace
Built to solve your content protection headaches
Whether you're a creator with thousands of proofs or a developer building a UGC platform, we make it easy. See how it works down below.
Solve your watermarking problems at scale
Batch process thousands of images, easily integrate with our API, and protect video and PDF assets—all in one place.
Text & Image Watermarks
Add text overlays or image logos as watermarks. Full control over font, size, color, and opacity.
Drag to Position
Place watermarks anywhere — use preset positions (bottom-right, center, corners) or drag freely.
Opacity & Blend
Fine-tune watermark visibility with opacity controls from subtle to bold. Preserve image quality.
Tiled / Repeated
Tile watermarks diagonally across the entire image for maximum protection against cropping.
Batch Processing
Process 100+ images in a single request. Upload a ZIP, get watermarked images back instantly.
REST API
Clean, well-documented API with API keys. Integrate watermarking into any pipeline in minutes.
Drag & Drop UI
No code needed. Upload images, configure your watermark, download results. Simple as that.
Multi-Format Support
Watermark JPEG, PNG, WebP, AVIF images — plus full support for Videos (MP4) and Documents (PDF).
Simple API. Powerful results.
One endpoint. Send your image and watermark config. Get back a watermarked image. Works with cURL, JavaScript, Python, Go — any language.
curl -X POST https://apiwatermark.com/api/watermark \
-H "Authorization: Bearer YOUR_API_KEY" \
-F "image=@photo.jpg" \
-F "text=© 2026 MyBrand" \
-F "position=bottom-right" \
-F "opacity=0.5" \
-F "font_size=24" \
-o watermarked.jpgconst fs = require('fs');
const formData = new FormData();
formData.append('image', fs.createReadStream('./photo.jpg'));
formData.append('text', '© 2026 MyBrand');
formData.append('position', 'bottom-right');
const response = await fetch('https://apiwatermark.com/api/watermark', {
method: 'POST',
headers: { 'Authorization': 'Bearer YOUR_API_KEY' },
body: formData
});
const buffer = await response.arrayBuffer();
fs.writeFileSync('watermarked.jpg', Buffer.from(buffer));Built for real workflows
Whether you're a solo photographer or running an e-commerce platform, API Watermark fits your workflow.
Photographers
Protect proofs with visible watermarks. Upload a batch, choose your logo placement, download watermarked previews for clients.
Upload 200 photos → watermark all → send gallery
E-commerce Sellers
Brand product images with your logo automatically. Integrate via API into your listing pipeline for consistent branding at scale.
New product uploaded → auto-watermark → listed
Developers & SaaS
Embed watermarking into your platform. Use our API to let your users watermark images without building processing infrastructure.
User uploads image → your app calls our API → done
Start watermarking in 30 seconds
No sign-up needed for the editor. Upload an image, place your watermark, download. Want API access? Get your key in one click.