Add Watermark

Local processingYour files are processed in this browser and are not uploaded.
How it worksAdd diagonal, repeating translucent text watermarks locally. Preview and download at the original pixel dimensions.
Supported useCompression results depend on the source; a new file is not always smaller.

Add diagonal, repeating translucent text watermarks locally. Preview and download at the original pixel dimensions.

or drop files here

Diagonal, repeating light-gray translucent text. No resizing or cropping. Downloads a PNG with unchanged pixel dimensions; file size may change.

How to use this tool

  1. Choose a still image.
  2. Enter watermark text and generate a preview.
  3. Download the PNG at the original pixel dimensions.

Frequently asked questions

Will the image dimensions change?

No resizing or cropping is applied. Output uses the decoded original pixel dimensions. PNG file size may differ from the source.

What does the watermark look like?

Light gray text at 25% opacity repeats diagonally across the image.

Are images uploaded?

All processing stays in your browser. Supports still images up to 24 megapixels and 16384 pixels on either side.

Open-source software notices