ZapToolbox

Add Watermark to Image — text or logo

Protect product photos and artwork with a text or logo watermark — tiled across the image or placed in a corner, on many photos at once.

Drop images here or click to chooseSeveral images at once is fine

🔒 Your files stay on your device — nothing is uploaded to any server.

How to use the Add Watermark to Image

  1. Drop one or more images.
  2. Type your watermark text or choose a logo, then set placement, opacity and size.
  3. Click “Watermark all images” and download each file or all at once.

About this tool

A visible watermark discourages people from reusing your photos without credit — useful for product photos on Instagram, Meesho or Amazon listings, photography portfolios, property photos and design work. A tiled, semi-transparent watermark is hardest to crop out; a small corner mark is less distracting for portfolio shots.

Set the style once and every selected image gets the same watermark, scaled to its own size. Choose your logo as a PNG with a transparent background for the cleanest look. Nothing is uploaded: the watermark is added on your device.

Frequently asked questions

Can I watermark many photos at once?

Yes. Select or drop several images; the same watermark is applied to each, scaled to fit its size.

Which placement is safest?

“Tiled across the image” is the hardest to remove. Corner watermarks can simply be cropped off.

How do I use my logo?

Switch the type to “Logo image” and choose your logo file. A PNG with a transparent background looks best.

Are my photos uploaded?

No. Watermarking runs entirely in your browser.