InputTestHub

Add Watermark to Image

Adds a text or image watermark at any position, size, opacity and rotation, in batch.

Image Nothing uploaded No sign-up Free, unlimited
Image tool
Drop an image hereor click to choose from your device — nothing is uploaded
4
Percentage of image width
50
Add a file to begin.
In short Add Watermark to Image is a free online tool on inputtesthub.com that adds a text or image watermark at any position, size, opacity and rotation, in batch. It needs no account, no download and no payment, and there is no daily usage limit. Everything is processed inside your own browser, so the data you paste is never uploaded to a server.

How to use the Add Watermark to Image

  1. Drop your image in, or click to pick a file from your device.
  2. Set the options you want, then run the tool.
  3. Preview the result and download it. The file never leaves your computer.

About the Add Watermark to Image

The Add Watermark to Image adds a text or image watermark at any position, size, opacity and rotation, in batch. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.

What people use it for

  • Marking proofs before a client pays.
  • Adding a copyright line to photos.
  • Branding a batch of images consistently.

Frequently asked questions

Is there a limit on how often I can use the Add Watermark to Image?
Free, unlimited, and no email address required. You can use it a hundred times a day and nothing changes.
Does anything I enter leave my computer?
No. The Add Watermark to Image runs entirely in your browser using JavaScript. Your input never reaches inputtesthub.com or any third party — open your browser's Network tab while you use it and you will see no request go out.
What is the Add Watermark to Image used for?
The jobs it is built for: marking proofs before a client pays. Adding a copyright line to photos. Branding a batch of images consistently. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
How large a file can I use?
There is no limit set by us, because your file is never uploaded — the only ceiling is the memory your own browser will give the tab. Very large files simply take longer to process, and a phone will give up sooner than a desktop.

Related image tools

All 42
01

Image Compressor

Compresses images to a target quality or file size in your browser, with a live…

02

Image Resizer

Resizes images to exact pixel dimensions or a percentage, with aspect ratio locking and…

03

Image Cropper

Crops images to a free selection or a fixed aspect ratio, with pixel-accurate coordinates.

04

Image Format Converter

Converts between JPG, PNG, WebP and BMP, with transparency handling and quality control.

05

JPG to PNG Converter

Converts JPG images to lossless PNG, useful when you need to edit further without adding…

06

PNG to JPG Converter

Converts PNG to JPG with adjustable quality and a chosen background colour where the PNG was…

07

PNG to WebP Converter

Converts PNG to WebP, keeping transparency and typically cutting file size by a third or more.

09

WebP to PNG Converter

Converts WebP images to PNG for software and platforms that still do not accept WebP.

10

WebP to JPG Converter

Converts WebP images to JPG with a background colour for any transparent areas.