Bulk Watermark Images

About bulk watermarking

A watermark tells people who made a photo and makes it harder to reuse without asking. Photographers, online sellers, estate agents and designers need it on every picture they post — and adding it one photo at a time takes hours.

This tool adds the same watermark to a whole batch at once. Set it up once on a live preview, press one button, and download every photo watermarked in a ZIP.

How to use it

• Click Click to upload, or drop a whole folder of photos onto the box
• Choose Text and type your name, or choose Logo / image and pick your logo
• Set the size, opacity, rotation and position — the preview updates as you go
• Tile is on by default and repeats the mark across the whole photo — untick it for one mark in a corner
• Press Watermark them all, then Download all (ZIP)

Text or logo

• Text — your name, your shop, your website or "© 2026 Your Name". Choose the font and colour — black is set, switch to white for dark photos
• Logo — your brand mark as an image. A transparent PNG looks best, because only the logo itself is drawn, not a white box around it

The same look on every photo

Photos in a batch are rarely the same size: phone shots, camera shots, portraits and landscapes all mixed together. A watermark set in pixels would look huge on one photo and tiny on the next.

So here the size is a share of each photo's shorter side. A 4% mark looks the same on a 1000 px photo and a 6000 px one, and it sits the same distance from the corner. What you see in the preview is what every photo gets.

Tiled or one corner mark

• Tiled across the photo *(the default)* — repeated diagonally over the whole image at -30°. Much harder to crop or remove. Best for proofs you send to clients before they pay, and for product photos that get copied
• One mark in a corner — untick Tile and pick a position (bottom right is set). Clean and professional. Best for portfolios and social media; set rotation to 0° for a straight mark

The default opacity is 35%: the mark is clear but the photo still shows through. Go up to 50–60% for stronger protection.

Everything happens on your device

Your photos are watermarked inside your browser:

• Private — unpublished shoots and client photos are never uploaded
• Fast — no upload wait, even for a few hundred photos
• Free — no sign-up, and no extra watermark from us on your photos

What people use it for

• Photographers marking a full shoot before sending proofs
• Online sellers putting a shop name on every product photo
• Estate agents marking property photos before listing them
• Artists and designers protecting work they post online
• Social media accounts adding a handle to a week of posts

Frequently asked questions

How do I add a watermark to multiple photos at once?

Drop all the photos in, set up your text or logo on the preview, and press Watermark them all. Every photo gets the same mark, and you download them together as a ZIP.

Can I use my logo as a watermark?

Yes. Choose Logo / image and pick your logo file. A PNG with a transparent background gives the cleanest result.

Will the watermark look the same on photos of different sizes?

Yes. The size is set as a share of each photo's shorter side, so a mark looks the same on a small phone photo and a large camera photo, portrait or landscape.

Is there a limit to how many photos I can watermark?

Up to 500 per batch. For more, run a second batch with the same settings.

Are my photos uploaded?

No. Everything happens inside your browser. Your photos never leave your device.

Does it lower the photo quality?

The photos keep their full size. JPG and WebP are saved at a high quality setting, so the only visible change is the watermark itself.

Good to know

• Up to 500 photos per batch; HEIC (iPhone) photos are accepted
• Photos keep their full pixel size
• Keep each original saves JPGs as JPG and PNGs as PNG; or choose one format for all
• Metadata (EXIF, GPS) is not copied to the watermarked files
• For one photo with more control, use Add Watermark to Image

Related tools

• Add Watermark to Image — one photo at a time
• Bulk Image Resizer — make the photos web-sized first
• Bulk Image Compressor — shrink the files after marking
• Bulk Image Converter — change the format of many photos
• Add Watermark to PDF — mark a document instead
• Add Watermark to GIF — for animated GIFs