Start safely selling ebooks from the webstore you already have. LemonInk is an ebook watermarking API. It can be instantly integrated into WooCommerce and PrestaShop webstores using our plugins. Or into any other store using our powerfull API. The watermarking itself works by applying a digital watermark to each sold ebook which makes them unique and traceable. This approach helps reduce ebook piracy by both discouraging users from publicly sharing ebooks securely signed with their data and allowing publishers to trace leaked ebooks back to their original purchasers.