How to Remove Hidden Data & Metadata from PDF Files


PDF document files can contain a wealth of hidden data & metadata. While hidden data & metadata are useful for finding and reviewing files, they pose privacy and confidentiality risks when the files are shared. The hidden data often contains private and sensitive information, that if unintentionally exposed can cause the file creator and his organization embarrassment with possible financial and legal implications.

Types of dangerous hidden data that PDF document files might contain include document properties, XMP metadata, comments and markups, and deleted objects.

"Remove Properties and Personal Information" doesn't supports PDF

Windows® has a very limited built-in metadata remover - the "Remove Properties and Personal Information" feature. This feature supports nine notable file formats, but PDF is not one of them! If the user will attempt to remove properties from a PDF file with this feature by selecting "Create a copy with all possible properties removed", it will create a completely identical copy of the original file, without warning the user that nothing in fact has been removed from it.

Removing hidden data & metadata from multiple PDF files at once

BatchPurifier™ can permanently remove hidden data & metadata from multiple files at once. It supports multiple types of document, image, and media file formats, including PDF files. It's an offline privacy-oriented desktop application for Windows®, and has a broad-spectrum of supported hidden data types.

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