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Resizing TIFF Images and Saving as JPEG for Inclusion in ContentDM Database (simplified)

Purpose: to create a JPEG image for import into an the Oviatt Library Digital Collections database using ContentDM Acquisition Station. The following procedure does not apply to Archival images.

  1. Open the TIFF image in Photoshop.
  2. Click Image > Image size to open the image size dialog box.
  3. Look at the height and width dimensions under "Document Size." These numbers reflect the size of the original object. Change the resolution:
    1. If the dimensions are 5 x 7 in. or larger, change the resolution to 100 dpi (pixels per inch). Click OK.
    2. If the dimensions are smaller than 5 x 7 in. , or if it is a text document, change the resolution to 300 dpi. Click OK.
    3. If the original item is a 35mm slide or negative, change the resolution to 450 dpi. Click OK.
  4. Click Image > Image size to open the image size dialog box (again).
  5. Make sure "Constrain Proportions" box is checked. Look at the "Pixel Dimensions" area, which indicates the display size of the item at 100%.
  6. Click File > Save As to save edited image as a JPEG. In the "JPEG options" set Quality to 12, and Format Options to "Standard."

NOTE: Prior to ContentDM Version 4, images were also resized if :

    1. The item was an image (without text), and the width was greater than 800 pixels.
    2. The item was text-based and the dimensions was greater than 1200 pixels by 800 pixels.

Last updated: 23-Mar-2007
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