Are my images uploaded to a server?

No. Every operation runs entirely in your browser using the HTML5 Canvas API. Your images are never sent to any server.

Which image formats are supported?

You can upload JPG, PNG, WebP, and GIF files. Each image is exported as a PNG to preserve any transparency from an image watermark.

Can I use my own logo as a watermark?

Yes. Switch to Image mode, upload your logo (PNG with transparency works best), then adjust its size, opacity, and position on the grid.

Does rotation affect where the watermark is positioned?

Rotation spins the watermark around its own center point. The anchor position on the nine-point grid is applied first, and the watermark is then rotated in place, so it stays roughly within the chosen region.

Image Watermark Tool

Name: Image Watermark Tool
Availability: InStock
Author: Nham Vu

Upload one or more images, configure your text or image watermark, preview the result, then download each watermarked image individually.

1. Upload Images

Click or drag images here

JPG, PNG, WebP, GIF

2. Watermark Mode

Watermark Text

Font Family

Size 36px

Color

3. Style & Position

Opacity 70%

Rotation 0°

Position

Live Preview

Upload an image to see a preview

No preview yet

Results (0)

Processed images will appear here

Summary

Upload one or more images, configure your text or image watermark, preview the result, then download each watermarked image individually.

How it works

Upload one or more images using the drag-and-drop zone or the file picker.
Choose Watermark Mode: Text or Image.
For Text mode, enter your watermark text, then choose a font, size, color, opacity, and rotation.
For Image mode, upload a logo or signature file and adjust its size, opacity, and rotation.
Select a position on the nine-point grid to place the watermark.
Click "Apply to All" to render the watermark on every uploaded image, then download each result.

Use cases

Protect photography portfolios by stamping a copyright or studio name onto every image.
Brand social-media content by overlaying a business logo before publishing.
Add "DRAFT" or "CONFIDENTIAL" text labels to document screenshots.

Frequently Asked Questions

Last updated: 2026-06-10 · Reviewed by Nham Vu