Document properties, also known as metadata, are details about a file that describe or identify it. They include details such as title, author name, subject, and keywords that identify the document's topic or contents.

If you include the document properties for your files, you can easily organize and identify them later. You can also search for documents based on their properties or insert them into your documents.

Learn more about document properties

There are four types of document properties:

  • Standard properties - By default, Microsoft 365 documents are associated with a set of standard properties, such as author, title, and subject. You can specify your own text values for these properties to make it easier to organize and identify your documents. For example, in Word, you can use the Keywords property (also called Tags) to add the keyword "customers" to your sales documents. You can then search for all sales documents with that keyword.

  • Automatically updated properties - These properties include both file system properties (for example, file size or the dates when a file was created or last changed) and statistics that are maintained for you by Microsoft 365 programs (for example, the number of words or characters in a document). You cannot specify or change the automatically updated properties.

    You can use the automatically updated properties to identify or find files. For example, you can search for all files created after August 3, 2015, or for all files that were last changed yesterday.

  • Custom properties - You can define additional custom properties for your Microsoft 365 documents. You can assign a text, time, or numeric value to custom properties, and you can also assign them the values yes or no. You can choose from a list of suggested names or define your own.

    For more information see View or create custom properties for a file

  • Document library properties - These are properties that are associated with documents in a document library on a website or in a public folder. When you create a new document library, you can define one or more document library properties and set rules on their values. When you add documents to the document library, you are prompted to include the values for any properties that are required, or to update any properties that are incorrect. For example, a document library that collects product ideas can prompt the person for properties such as Submitted By, Date, Category, and Description. When you open a document from a document library in Word, Excel, or PowerPoint, you can edit and update these document library properties by clicking File > Info. All required properties from the document library are outlined with red borders on the Info tab in Word, Excel, and PowerPoint,.

If you want to insert any of these properties into your Word document see Add the file name, date, author, or other document properties to a header or footer.

View and change the standard properties for the current file

View or create custom properties for the current file

Custom properties are properties that you define for an Microsoft 365 document. You can assign a text, time, or numeric value to custom properties, and you can also assign them the values yes or no. You can choose from a list of suggested names or define your own.

  1. Click the File tab.

  2. Click Info.

  3. Click Properties at the top of the page, and then select Advanced Properties.

    Notes: 

    • In Access you'd select View and edit database properties

    • In Project you'd select Project Information

    • In Publisher you'd select Publication Properties

    • Currently, you can't view or create custom properties for Visio files

  4. Click the Custom tab.

    • In the Name box, type a name for the custom property, or select a name from the list.

    • In the Type list, select the data type for the property that you want to add.

    • In the Value box, type a value for the property. The value that you type must match the selection in the Type list. For example, if you select Number in the Type list, you must type a number in the Value box. Values that don't match the property type are stored as text.

  5. Click OK.

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