Bury latent information to your web page for confidentiality and track.

If someone leak data by screenshots, you can reveal identity information from the picture.

$ npm install backstab --save

import Backstab from 'backstab'

new Backstab({
  content: 'the text you want to bury',
  container: document.body
})

• content: string, default is ''
• container: HTMLElement, the container DOM to store watermarks. default is document.body
• style: object, custom watermark style
  • gridHeight: number, grid height, default is 60
  • gridWidth: number, grid width, default is 150
  • fontSize: number, font size, default is 20
  • opacity: number, opacity, default is 0.5, recommmend 0.005
  • rotate: number, rotate deg, default is -15

This is a screenshot with 0.005 opacity buried information. Open it with PhotoShop, add new pure black upper layer, use hard mix blending mode to show the text.

MIT