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Images · Local utility

Image Watermark

Add text or a PNG logo to JPG, PNG or WebP images locally. Process one image or a batch of up to 12.

Task path / input to outcome

Choose your images

Runs locally · Nothing is uploaded

How Image Watermark works, privacy, and related tools

Task path / input to outcome

How to add a watermark

  1. 01

    Choose your images

    Each image: 12 MiB, 8 million pixels, 8,192 px per side. Batch: 96 MiB input, 64 MiB output. Logo: PNG, 4 MiB, 4 million pixels.

  2. 02

    Set text or a logo

    Add text or a PNG logo to JPG, PNG or WebP images locally. Process one image or a batch of up to 12.

  3. 03

    Check and download

    Original pixel dimensions are kept. PNG keeps transparency; JPEG uses the selected background. JPEG/WebP are re-encoded. Watermarks can be cropped or removed. Files, text and logos stay in memory, without uploads or saved history.

Tool facts

Processing
In your browser
Input leaves this device
Never
Retention
Nothing is stored
Price
Free

Your input stays in the browser.

Image Watermark uses its verified local execution path and does not create a hidden input or output history.

Local execution

Runs inside the current browser tab.

No hidden processing

Active tool data never becomes a Toolars document record.

No account required

Use the core workflow without creating a profile. Favorites sync to your account after you sign in.

Immediate reset

Clear the tab and the active working data is gone.

What Image Watermark actually does

Add text or a PNG logo to JPG, PNG or WebP images locally. Process one image or a batch of up to 12.

Common questions

Do my images leave this device?
Add text or a PNG logo to JPG, PNG or WebP images locally. Process one image or a batch of up to 12. Original pixel dimensions are kept. PNG keeps transparency; JPEG uses the selected background. JPEG/WebP are re-encoded. Watermarks can be cropped or removed. Files, text and logos stay in memory, without uploads or saved history.
Which files can I process?
Each image: 12 MiB, 8 million pixels, 8,192 px per side. Batch: 96 MiB input, 64 MiB output. Logo: PNG, 4 MiB, 4 million pixels.
Can a watermark prevent all copying?
Original pixel dimensions are kept. PNG keeps transparency; JPEG uses the selected background. JPEG/WebP are re-encoded. Watermarks can be cropped or removed. Files, text and logos stay in memory, without uploads or saved history.

Keep reading

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