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To ensure consistency and security in the Drupal-based EU and EC branded websites, only a limited amount of file formats can be uploaded to them.


Only the following file formats can be uploaded:

  1. HTML and PDF for content
  2. GIF, JP(E)G and PNG for images

Other formats may only be used in exceptional circumstances:

  • pure text files (.txt) files, where information is not available in a richer format
  • Zip format should only be used for file sharing, and their use should be limited as they are:
    • not executable in a browser
    • not indexable for search
    • can’t be seen or edited in a CMS
    • contain totally static content
    • can pose security threats

It is the responsibility of the uploader to ensure that the shared files don't contain viruses.

For non Drupal-based sites the site owner is advised to whitelist file types and check each of them for possible security threats.

More information on EC files use can be found in the Europa Component Library.


Your use of permitted file formats must respect accessibility guidelines.

Contact and support

Need further assistance on this topic? Please contact the team in charge of Europa Domain Management (EU Login required).

Attention: Public content on the Europa Web Guide has moved to the EC core website: Europa Web Guide. Restricted pages are now on SharePoint: European Commission website content governance.
Important note: Please update any links to the guide in your documentation or intranet pages accordingly.

The Europa Web Guide is the official rulebook for the European Commission's web presence, covering editorial, legal, technical, visual and contractual aspects.
All European Commission web sites must observe the rules and guidelines it contains.
Web practitioners are invited to observe its contents and keep abreast of updates. More information about the web guide.