MetaClean for Gmail

MetaClean for Gmail automatically removes, adds, or modifies metadata in email attachments, preventing the leak of confidential information that occurs continuously in this type of communication and avoiding possible economic and reputational damages derived from the malicious use of metadata.

Why I should use MetaClean for Gmail?

Data Breach Prevention: Every document contains metadata. For example, metadata is embedded in the file and is different to the information that is typed on the page – such as Author, track changes or comments. It can tell the reader who created the document, how long was spent editing it, and where the document is saved. Cleaning a document of metadata means that the recipient will only be sent what would be printed. Removing potentially harmful forms of metadata from the attached files is a risk area that should be considered when investigating ways to prevent email-related data leaks.

Phishing Attack Prevention: MetaClean prevents the exfiltration of information through metadata which is commonly used to generate phishing attacks.

MetaClean for Gmail is fully integrated with Gmail.

NO user registration is required: Just install and enjoy it!

Install extension for: Google Chrome, Microsoft Edge and Mozilla Firefox


  • Removes metadata from all versions of Microsoft Office, Open/Libre Office, PDF, RTF and Image, Audio and Video files. View all formats
  • Supports ZIP and 7z files: compressed documents will be processed by MetaClean.
  • Detection of signed PDF files: To avoid invalidation of the signature, a warning will be displayed indicating whether you want to process the metadata of the signed PDF file.
  • Delete hidden data such as: Printer routes, history of document changes, etc.
  • For free version, the keywords tag “Metadata removed by MetaClean (” will be added to the processed documents. To remove this metadata it is required a license, please contact us:


  • Creation of metadata templates to remove, add or modify standard or customized metadata tags.
  • Creation of white lists by domains or email addresses. The email attachments sent to one member of the white lists will not be processed by MetaClean.
  • Implements some Data Loss Prevention (DLP) functionality, preventing an attachment from being sent if a specific metadata tag is found in a document.
  • Dashboard (management web console) to centralize metadata management:
    • Create metadata templates.
    • Obtain statistics of the metadata that is removed or modified in the documents processed by MetaClean.
    • Graphical representation of processed metadata.

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