Ebook watermarking for WooCommerce

Use LemonInk to watermark EPUB, MOBI and PDF files in one of the most popular ecommerce solutions. Just install our plugin and start selling watermarked ebooks.

WooCommerce is one of the most popular ecommerce solutions out there and it already has an excellent support for selling digital products. The only thing it was lacking was an ability to protect your files from piracy. Until now.

By installing our plugin, you can immediately start selling EPUB, MOBI and PDF files through your WooCommerce store without worrying about users publishing your books online for free.

  1. Installation

    1. Upload the plugin files to the /wp-content/plugins/plugin-name directory, or install the plugin through the WordPress plugins screen directly.
    2. Activate the plugin through the 'Plugins' screen in WordPress.
    3. Go to API keys section and generate a new API key. Copy the token.
    4. Go to WooCommerce → Settings → Integration → LemonInk screen, paste the copied token and save.
  2. Adding watermarked product

    1. Add a master file and copy it's ID.
    2. Edit the product you wish to watermark using LemonInk, mark it as Downloadable, make sure that 'Watermark downloads using LemonInk' checkbox is checked and paste the ID into the 'Master file ID field'. Save.

How does ebook watermarking work?

LemonInk is a cloud service used to secure digital books from piracy. It applies a digital watermark to each purchased ebook making it unique and traceable.

  • After each purchase LemonInk will create watermarked versions of your ebooks and attach them to the user’s order allowing them to easily download their individual copies.
  • Each file is digitally marked both visibly (by adding the purchaser's email address to its content) and invisibly (by embedding a series of obfuscated markers into an ebook's code).
  • This technique discourages users from publishing the files on the internet and allows you to track down those who’ve published them nevertheless.