Reducing visual clutter from a PDF document is a valuable task for many reasons. Watermarks can be distracting, impede readability, and make it difficult to extract or edit the underlying content. Filtering watermarks out of a PDF involves employing techniques to remove or obscure these unwanted markings.
The ability to manipulate PDF documents has become increasingly important in the digital age. Watermarks are often used to protect intellectual property, but they can also be used for other purposes, such as branding or decoration. However, sometimes it is necessary to remove a watermark from a PDF document in order to make it more readable, editable, or usable in other ways.