Orientation of thumbnails incorrect

Symptom

• The orientation of files in Project Client and on the site does not match the orientation when viewing the file outside of CONTENTdm.

Applies to

• CONTENTdm

Resolution

The reason images are rotating is that the files themselves contain orientation metadata that does not align with the pixel coordinates of the file. Many devices have software that intuitively adjusts the display orientation when viewing the file based on Exif orientation metadata such as 'Rotate 270 CW'. However, CONTENTdm automatically interprets image orientation based on pixel coordinates. Project Client always assumes pixel coordinate '0,0' to be the 'top,left' of the image (this is also the default value for exif.image.orientation metadata), and there is no way to change pixel coordinates within CONTENTdm or Project Client.

You can use the following workflow to remedy this:

• Open the file in any image editing software
• Rotate the image to the correct orientation
• Export the file without saving existing Exif or XMP data

You can then either delete the old record and ingest the new file; or, you can replace the file on your site by importing the object back into Project Client:

• Open Project for desired collection
• Select Find in Collection
• Browse or search for the items in question, select them with the check box, and Add to Project (edit)
• In the Project Tab select the object and Open in Tab
• In the Object Tab select Replace Item and locate your new file
• Select Replace Thumbnail and Autogenerate
• Click OK
• Save & Next

Repeat the above process until all objects are replaced and Upload for Approval as normal. Approve and Index the collection.

Additional information

For additional assistance, please contact OCLC Support and include your site ID number, as well as attachments of the items you are experiencing issues with. Provide steps you are taking to add to the Project Client.

Page ID