How to Add an Undeletable Watermark to Your PDF
Watermarks are a common way to protect documents, but traditional watermarks can often be removed or bypassed with just a few clicks. In this post, we’ll show you how to create a truly undeletable watermark using Look Scanned, a browser-based tool that simulates scanned documents for enhanced document security. Why Traditional Watermarks Can Be Removed Easily Most PDF editors treat watermarks as separate layers or text elements. That means: Users can select and delete watermarks using tools like Adobe Acrobat or Foxit; Watermarks are often not embedded into the actual content of the page; OCR (optical character recognition) software can read the content beneath or around the watermark, essentially ignoring it. The Look Scanned Approach: Burnt-In, Uneditable Watermarks Look Scanned takes a different approach by converting the entire page into a scanned-like image, where all visible content—including the watermark—is baked into the visual appearance of the page. ...