What's the best watermark opacity?

For a corner logo, 40-70% opacity is visible without ruining the photo. For a tiled protective watermark across the whole image, drop to 15-25% so the photo stays usable as a preview.

Can I watermark many photos at once?

Yes. Upload any number of photos, set the watermark once, and every photo gets the same treatment. Download them all as a ZIP.

Are my photos uploaded to a server?

No. Watermarking happens entirely in your browser - photos and logo never leave your device, which matters for client work and unpublished shoots.

Add Logo Watermark to Photos Online - Free Batch Watermark Tool

Live Preview

No photos

Drop photos here

or click to browse - JPEG, PNG, WebP - multiple files welcome

Exports are full resolution. The preview shows the photo selected in the strip below - settings apply to all photos.

Related tools

How to Watermark Photos With Your Logo (Without Ruining Them)

A watermark does two jobs: it brands every photo you publish, and it protects work you share before payment. The trick is doing both without wrecking the image - and without paying for bloated desktop software.

Corner logo vs. tiled watermark

Corner logo (bottom-right, 12-20% width, 40-70% opacity) - the standard for social posts, portfolio images, and product photos. Visible, professional, unobtrusive.

Tiled watermark (15-25% opacity, angled) - protection mode for proofs, previews, and stock-style delivery. The repeated logo makes the image useless to steal but still reviewable.

Pro tips

Use a white version of your logo on dark or busy photos - make one in seconds with the Logo Color Changer.

Your logo should have a transparent background; if it's on white, run it through the Background Remover first.

Keep the watermark clear of the photo's subject - bottom-right with a 3-5% margin is the safest default.

Watermark after cropping and editing, so the logo lands exactly where you expect on the final frame.

Frequently asked questions

Does the tool resize my photos?

No - photos keep their original dimensions. Only the watermark is scaled, relative to each photo's width, so a batch of mixed sizes gets a consistent look.

Is there a limit on the number of photos?

No hard limit - everything runs locally in your browser. Batches of 50+ photos work fine on a typical laptop.

Add Your Logo Watermark to Photos in Bulk