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Using Custom Thumbnails

Thumbnails are the small images that you view when you browse or search a collection. CONTENTdm provides you with the ability to use custom thumbnails rather than the thumbnails that are generated by the Project Client when you add items to your project. Custom thumbnail images are especially useful for documents, videos, and audio files when a small representation of the item itself may not be immediately recognizable. Any thumbnail image within CONTENTdm can be replaced with your own custom thumbnail.

Custom thumbnail images must be created outside of the Project Client and should be sized no greater than 160 pixels wide and 120 pixels high. If the image is larger than 160 x 120 pixels, it will be resized so that it does not exceed those dimensions.

You can specify a custom thumbnail by editing an item in your project spreadsheet. You can also specify custom thumbnails when you are adding multiple files.

Learn about:

  1. Creating a Custom Thumbnail Directory
  2. Replacing Thumbnails When Editing an Item
  3. Using Custom Thumbnails While Adding Multiple Items

Creating a Custom Thumbnail Directory

To create a thumbnail directory:

Custom thumbnails must be JPEG files. Thumbnail dimensions must be no larger than 160 x 120 pixels. If larger, the thumbnails will be resized. A custom thumbnail is not required to have the same base file name as its associated image.

  1. Create a directory in an area accessible by the Project Client. This is usually on the same computer as the Project Client or on a mapped network drive.

  2. Move custom thumbnails into the newly created directory.

Replacing Thumbnails When Editing an Item

These instructions assume the item is already in the project spreadsheet.

To replace the thumbnail image of an item with your own custom thumbnail image:

  1. On the Project tab, find the thumbnail you want to replace, right-click the thumbnail and select Replace Thumbnail.

    The Replace Thumbnail dialog displays.

  2. Browse to the image to use as a custom thumbnail, select it, and click Open.

    The thumbnail that you select must be less than 160 pixels wide by 120 pixels high. The Replace Thumbnail dialog box shows the new thumbnail.

  3. Click OK to save the new thumbnail. The Replace Thumbnail dialog closes and the new thumbnail image displays in the project spreadsheet.

    Alternatively, if you have opened the item for editing in a new tab, you can access the Replace Thumbnail dialog by clicking Change Thumbnail in the left task bar under Item Editing Tasks.

Using Custom Thumbnails While Adding Multiple Items

If you want to use custom thumbnails when adding multiple items, you must first specify those thumbnails by using the Project Settings Manager before adding the items or make sure to do so while using the Add Multiple Items wizard.

To enable custom thumbnails when adding multiple items:

  1. While using the Add Multiple Files wizard, click Image Options from the Display Image Settings screen.

    The Project Settings Manager displays, with the Images and Thumbnails page selected.

  2. Click Thumbnails. The Thumbnail Manager displays.

  3. Uncheck Turn on automatic thumbnail creation for all other file types.

  4. Review the Thumbnail Selections by File Type. Add or edit the file types you will be importing.

    To add a file type, click Add.

    To edit the thumbnail for a listed file type, click the file type row to select and then click Edit. The Edit Thumbnail Mapping dialog displays.

  5. Click Choose Thumbnail to browse to the thumbnail to associate with the selected file type. Click Open and then click OK to close the Thumbnail Mapping dialog and display the Thumbnail Manager with the updated thumbnail.

  6. Click OK.

  7. Close the Project Settings Manager to return to the wizard and the Display Image Settings screen.

  8. Click Next to continue with the Add Multiple Items wizard.

Note: If you do not want the custom thumbnail to always apply, be sure to return to the Images and Thumbnails page after you add the files and edit these settings.