When previewing images in the media library, a small version of each image, called a thumbnail,  displays in the middle of the screen. Historian allows you to change the thumbnail size in the media library view.


Thumbnails are reduced-size versions of pictures or videos, used to help in recognizing and organizing them, serving the same role for images as a normal text index does for words. In the age of digital images, visual search engines and image-organizing programs normally use thumbnails (Wikipedia).  In Historian, each image has a matching thumbnail, hidden inside the program, which is a much smaller file than the original image. When viewing images in the media library view, it is actually the thumbnail you are looking at, not the original file.

For example this image in my media vault is 5.4MB, but its thumbnail is 10.2KB – over 500 times smaller.


Changing the Thumbnail Size

There are two easy ways to change the thumbnail size.

  1. On the View Ribbon, click Zoom In to make the thumbnails larger, or Zoom Out to make the thumbnails smaller.
  2. Below the media library is a sliding scale. Click and drag the slider to make the thumbnails smaller or larger.


The actual size of the thumbnails you see will depend on your screen size and resolution, but these images indicate the difference between the largest and smallest thumbnails.


Large thumbnail


Small thumbnails

When to use different sizes of thumbnails

Large thumbnails

  • See the image more clearly, without needing to open the image itself.
  • Quickly preview your images to choose which ones need deleting.
  • Star rate your images more quickly.

Small thumbnails

  • Quickly scroll through your images to find a particular image or group of images.
  • More easily select groups of images for tagging, sharing etc.
  • Assess at a glance how many images you have in a particular category or tag or date.

To see an image in full view, most people would open the image in edit mode. However scrolling through those images can be quite slow, since each 5-10MB image takes time to load. Also each time you want to view an image from a different part of the collection, you need to go back to the media library, find and open that new image. Using the largest setting in the thumbnail view means you only need to open images in edit mode when you are actually editing them. This is a huge time saver.

Note: If your thumbnails are loading slowly, you may need to increase the amount of memory you have allocated to thumbnails. Click here for a tip on how to do that.


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5 Responses to Historian Tip: Change the Thumbnail Size

  1. debbie says:

    When viewing in a thumbnail view, is it possible to easily show the “star” rating? I try to delete any unstarred photo, but it’s redundant and slow to keep opening them up to see if they were rated. . . also, I don’t delete as I’m initially going through my photos as I may have three similar photos but I just need the best one, but want to first see what I have before I hit delete.

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