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  • Colin Anderson 11 posts 102 karma points
    Feb 19, 2021 @ 11:11
    Colin Anderson

    Limit media items to certain types

    I am trying to limit the file types that editors can upload.

    Given that the media library and the entire file upload functionality of Umbraco is lacking big time, I am trying to limit the file types allowed through the MediaService.Saving event.

    I have an event set up that checks the ContentType alias and then checks the file extension. If it is not a PDF then I stop the saving of the content.

    My problem is that most of my users will be uploading the files directly from the Media Picker data type. Is there a way to link the Media Picker to a certain Media Type? The default seems to be Umbraco deciding that anything that isn't an image must then be a File.

  • Mehmet Avcı 32 posts 124 karma points
    Feb 19, 2021 @ 12:43
    Mehmet Avcı

    Hi Colin,

    There is a list of extensions in config/umbracoSettings.config file to limit/allow types. I hope it would be enough for you.

    I believe image types is included in v8 a little different, below are from v7.

     <!-- These file types will not be allowed to be uploaded via the upload control for media and content -->
      <!-- If you add a new image file type to umbraco, make sure you update ApplicationEventRegisters.cs IsFileImage method -->


  • Colin Anderson 11 posts 102 karma points
    Mar 03, 2021 @ 09:46
    Colin Anderson

    Thanks for the reply, but unfortunately this would limit the files that can be uploaded globally within Umbraco. I want to limit them for a single media picker.

    I have since figured out that the Multinode Treepicker allows me to select the media type I wish to use. Then I can create the customMediaService.Saving event to check a custom config setting to limit the file types.

    Still to be tested, but it should work.

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