Watermark Tool

Add Watermark Online

Add text or logo watermarks to photos with adjustable font, size, color, opacity, position and rotation. Batch process up to 50 images. No upload to server.

Last updated: July 2026

Text + Logo

Watermarks

Batch

Up to 50 Images

Full

Customization

ZIP

Download

How to add a watermark to an image

1

Drop or select your images

Up to 50 at once. Nothing is uploaded, they stay on your device.

2

Enable text and/or logo

Type your watermark text, or upload a logo (PNG with transparency recommended).

3

Adjust position and rotation

Use the grid and sliders, or drag directly on the preview.

4

Choose a format

JPEG, PNG or WebP, with a quality slider for JPEG only.

5

Apply and download

Individually, or all at once as a ZIP for multiple images.

Watermark tools

Add Watermark to Image

Full watermark tool with text and logo support, position grid, rotation and batch.

Add Text Watermark

Add copyright text, URLs and brand names to photos. Custom font, color and opacity.

Add Logo Watermark

Brand your photos with a PNG logo. Opens the logo panel directly. Scale, opacity and position controls.

Who uses watermarks and why

Photographers

Protect portfolio images shared online. A diagonal or tiled watermark with your name or website URL prevents unauthorized use without payment.

E-commerce sellers

Brand product photos with your shop logo before uploading to marketplaces. Deters image theft by competitors.

Bloggers and content creators

Add a URL or copyright notice to images before publishing. When images spread on social media your brand travels with them.

Designers sharing previews

Send client mockups with a PROOF or DRAFT watermark so they cannot be used before final payment.

Stock photographers

Preview images with a tiled watermark make it impossible to use the image without licensing. Full-coverage tile is the industry standard.

Businesses protecting documents

Add CONFIDENTIAL watermarks to sensitive internal images and screenshots before sharing.

Why use ImgTweak for watermarks

No uploads, 100% private

Your images never leave your device. All processing uses the browser Canvas API. Competitors upload your photos to their servers.

Batch watermark up to 50 images

Apply the same settings to an entire batch and download as a ZIP. Most free tools only support one image at a time.

Tile repeat for full coverage

The repeating grid watermark is the strongest protection option. Used by stock photo agencies worldwide.

No paywalls or feature limits

Batch, tiling, logo upload, rotation and opacity are all free. Competitors charge for batch and logo features.

Watermarking your photos the right way

A photographer shares a portfolio image on Instagram without a watermark. Two weeks later, someone finds it through a reverse image search and it's showing up on a stock site they didn't submit to, being sold for $15 a download. This happens constantly. It's not paranoia, it's a documented pattern in online photography communities. A watermark isn't a guarantee of protection, but it's the difference between an image that gets scraped and reused and one that at minimum carries your name wherever it ends up.

The other side of this is that a poorly placed or overly aggressive watermark can make your work look amateur and actually hurt the impression you're trying to make. Getting the balance right matters. Here's what actually works.

Text watermark vs logo watermark

Text watermarks are faster to set up and work well for copyright notices, website URLs, and simple brand names. They're also more readable at small sizes than logos. If you're a solo creator or photographer and your name is your brand, a text watermark with your name or website is the right choice for portfolio sharing.

Logo watermarks are better when you have a visual brand identity you want to reinforce. A small transparent PNG logo in the bottom corner of a product photo does more brand work than text because it's recognized faster. The key is using a PNG with a transparent background. A logo on a white rectangle looks careless. The same logo floating cleanly over the image looks professional.

The opacity question

Most people set opacity too high or too low. At 80 to 100% opacity, a watermark overpowers the image and makes it look like you don't trust the viewer. At 15 to 20%, it's invisible at a glance and provides almost no protection. The professional standard is 40 to 60%. Visible enough to be read without trying. Light enough that the image still does its job.

For proof-of-concept previews sent to clients before final payment, you can push to 70 to 80% and tile it across the whole image. That's not about aesthetics. It's about making the image useless without the finished version.

Corner watermark vs tile: which actually protects your image

A corner watermark is easy to crop out. Anyone with basic editing skills can remove a bottom-right watermark in thirty seconds. It's still worth using for casual sharing because it deters lazy theft, but it won't stop someone determined. A tiled watermark that repeats across the entire image is much harder to remove cleanly. To remove it properly, someone would need to individually retouch each instance, which is rarely worth the effort when there are unwatermarked alternatives available.

For stock photography previews, client mockups, and any image you genuinely don't want used without payment, use tile mode. For portfolio sharing where you want the image to be seen and appreciated, a corner watermark is the right balance.

Common watermarking mistakes

Setting opacity above 80% or below 20%

Too high overpowers the image and looks distrustful. Too low provides almost no protection. 40 to 60% is the professional standard for a watermark that's visible but not intrusive.

Using a logo on a white background instead of transparent PNG

A logo watermark on a solid white rectangle looks careless. Export your logo as a transparent PNG so it floats cleanly over the image.

Relying on a single corner watermark for high-value content

A corner watermark is easy to crop out in seconds. For stock photography previews or client mockups you don't want reused, use tile mode instead.

Assuming 'Add Text Watermark' pre-configures something different

Text is already enabled by default on this page, so that link behaves the same as the base URL. Only the logo link changes anything, it pre-opens the logo panel.

Uploading a HEIC file and assuming it will always work

HEIC support depends on your browser's native image handling rather than a dedicated decoder. If a HEIC upload doesn't load, convert it to JPEG or PNG first.

Frequently asked questions

How do I add a watermark to an image for free?

Upload your image using the tool above, choose text or logo mode, type your watermark text or upload your logo, adjust opacity and position, then click Apply Watermark and Download. Everything runs in your browser with no uploads.

Can I batch watermark multiple images at once?

Yes. Upload up to 50 images at once. Configure your watermark settings once, click Apply to all images, and download them individually or as a ZIP archive. All images are processed sequentially in your browser.

What opacity should I use for a professional watermark?

40 to 60% opacity is the professional standard for visible but unobtrusive watermarks. This makes the watermark clearly visible while still letting the underlying image show through naturally.

What is tile or repeat watermark mode?

Tile mode repeats your watermark in a grid pattern across the entire image. This provides the strongest protection because it is much harder to remove than a single-corner watermark. It is recommended for stock photography and high-value content.

Can I position the watermark by dragging it, or only with the position grid?

Both. The 9-point grid snaps the watermark to a corner, edge or center position. You can also drag the watermark directly on the live preview to place it anywhere, and drag its corner handle to resize it, which switches it to a custom position.

Can I use my own font, or only the ones listed?

You choose from 8 built-in web-safe fonts (Arial, Georgia, Impact, Verdana, Courier New, Times New Roman, Trebuchet MS and Palatino). There's no option to upload a custom font file here. If you need a specific brand font, a logo watermark exported as a transparent PNG is the more flexible option.

Are my images uploaded to a server?

No. All watermark processing happens locally in your browser using the HTML5 Canvas API. Your images never leave your device. You can disconnect from the internet after loading the page and the tool will still work.

What format should my logo be for the best result?

PNG with a transparent background works best for logo watermarks. Transparency means only your logo appears on the image, without a white or colored rectangle behind it. Most logo design tools and brand kits provide transparent PNG versions.

Can I add a diagonal watermark?

Yes. Use the rotation slider and set it to 45 or -45 degrees for a diagonal watermark. Diagonal watermarks are popular because they are harder to crop out than corner watermarks.

Can I control JPEG quality, and what about PNG or WebP?

A quality slider from 40 to 100 appears only when JPEG output is selected. PNG output is always lossless with no quality control, and WebP output uses a fixed encoding with no adjustable slider either.

Does EXIF or GPS data survive watermarking?

No. Each image is drawn onto a canvas and re-encoded on export, so EXIF metadata, including GPS location, does not carry over to the watermarked output.

Can I upload a HEIC photo from my iPhone?

HEIC is listed as an accepted format, but this tool relies on your browser's native image support rather than a dedicated HEIC decoder. Support can vary by browser. If a HEIC file doesn't load, convert it to JPEG or PNG first using the HEIC converter, then watermark the converted file here.

Do the 'Add Text Watermark' and 'Add Logo Watermark' links do anything different from this page?

The logo link pre-opens the logo panel so you can go straight to uploading a logo, since text is already enabled by default on every version of this page. The text link behaves the same as the default page, since the text layer starts enabled either way.

Ready to watermark your photos?

No sign-up. No uploads. Drop your images above and download the watermarked versions in seconds.