Images watermarking
Secure Your Digital Images
Instantly add a watermark to your photos or assets to protect your IP before sharing them online.
Why teams pick us
Built specifically for images
Blazing Fast
Images are processed in milliseconds with perfectly transparent backgrounds where applicable.
Batch Ready
Easily integrate with our API to watermark hundreds of images in your application seamlessly.
Pixel Perfect
Control font, color, opacity, and rotation down to the exact pixel.
Developer flow
One endpoint per file
POST a images and a config. Get the watermarked result back. Same request shape across formats — only the file type changes.
Full API referencecURL
curl -X POST https://api.apiwatermark.com/watermark \
-H "Authorization: Bearer aw_••••••••" \
-F "image=@source.jpg" \
-F "text=© MyBrand" \
-F "position=bottom-right" \
-F "opacity=0.5" \
-o watermarked.pngFAQ
Images watermarking — the short answers
Does it work with transparent PNGs?
+
Absolutely. We fully support alpha channels in both your source image and your watermark overlay.
Can I use my own logo?
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Yes, you can upload any image/logo file to use as the base watermark instead of text.
Ready to watermark your images?
Free tier covers 100 calls a month. No credit card needed.