Very simple to use tool to add watermark to images.
Use it on a Client Action flow, to add a watermark before saving or displaying an image.
The only required input is the original image.
Works on mobile and reactive apps.

Inputs:

• Original binary image
• Text size multiplier (optional, default is 1.0)
• CSS color (optional, default is "yellow")
• Watermark text (optional, default is the current date)

Output:

• Watermarked binary image

Inspired on the example from: img.ly/blog/how-to-add-watermark-javascript/

The approach is based on the HTML5 <canvas> element.

Example on how to use (taken from the demo app):