Why does the intelligence service not extract metadata from some of the files?

In some situations, intelligence services such as M-Files Information Extractor are unable to produce metadata suggestions based on the content of certain files. The issue may be caused by the simple fact that M-Files Server is not able to read the file content, and therefore not able to provide the content to the intelligence service for analysis.

You may come across this kind of issue, for example, if your organization is using password-protected PDF files. If opening the PDF file without a password or copying content from it is restricted via the security settings of the PDF file, M-Files will not be able to access the file content. For more information about password-protected PDF files, see this Adobe article.