Skip to main content
中文
Back to Image Tools

Image Watermark

Processing and format details+
Core processing
100% browser-local
Tool data upload
No application-server upload
Browser technology
Canvas API + Blob download
Formats / output
JPG, PNG, WebP, AVIF → PNG, WebP, JPEG

LOCAL WATERMARK STUDIO

Place a watermark with confidence

Type your mark, choose a placement or drag it directly on the preview, then export a clean local copy. Your image and text never leave this browser.

Placement

Tip: drag the watermark on the preview for a custom position.

OPTIONAL CONTROLS

Advanced watermark settings

Fine-tune color, scale, opacity and export only when the default watermark needs a more specific finish.

Choose an image to begin.

LIVE PREVIEW

Drag text to reposition

Your watermark preview will appear here

About this tool+

Select an image, write a watermark, choose a nine-point placement or drag it directly on the live preview, then tune color, opacity and size. Choose a single mark or repeat protection, and export PNG, WebP or JPEG without uploading your image or text.

BEST FOR

Creators, sellers and teams preparing image previews or shareable visual assets.

  • Choose a nine-point placement or drag the text to a custom position
  • Use a single mark or a repeated protection style
  • Tune watermark text, color, opacity and size in a live preview
  • Export PNG, WebP or JPEG without uploading the image or text
How to use+
  1. 1

    Select an image

  2. 2

    Enter the watermark text and choose a single or repeated style

  3. 3

    Click a placement or drag the text, then tune appearance

  4. 4

    Choose the output format and download the result

Tips and examples+

PRACTICAL EXAMPLE

Make a watermark visible without getting in the image's way

A text watermark can label an author, brand or intended use, but it does not replace copyright registration, a license agreement or a platform complaint process. Use the nine-position grid for a fast placement, or drag the text directly in the preview for a custom location. A single mark is subtle; tiled protection makes reuse harder to ignore. The downloaded image is a new PNG, WebP or JPEG file and does not overwrite the source file.

Example: add a shop name to a product preview

Choose the source image, enter a short shop name, select bottom right on the nine-position grid and lower the opacity. Drag the preview text slightly if it covers a product detail. For broader protection, switch to the tiled style and verify that the repeated marks stay readable without overwhelming the image. Download PNG for lossless output, WebP for web delivery or JPEG for broad compatibility; keep the original and retain any needed copyright or license notice on the publishing page.

Before you publish

  • Make sure the text, position and color remain readable at the final display size
  • Do not cover prices, faces or necessary information in the image
  • A watermark does not prove ownership or remove anyone else's rights

Frequently asked questions about Image Watermark

Frequently asked questions+

Will the image be uploaded?

No. Image rendering happens inside the browser Canvas.

Can I use a logo instead of text?

This version supports text watermarks only, including a repeated protection layout.

Will it overwrite my original image?

No. It creates a new PNG, WebP or JPEG download and leaves the original file unchanged.

How does GlobalCoreHub handle data in Image Watermark?

GlobalCoreHub runs the core Image Watermark workflow in the current browser. Tool input is not uploaded to the GlobalCoreHub application server; any local saving described on this page stays in the current browser until its site data is cleared.

Related tools+