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OCLC Support

Error message "Alpha channel is not supported in TIFF files"

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Symptom
  • When adding items you are prompted with a message that TIFF files are unable to process because "Alpha channel is not supported in TIFF files"
Applies to
  • CONTENTdm 
  • Project Client
Resolution

CONTENTdm Project Client is unable to support TIFF files with an Alpha channel. A solution to this would be to use an image editor to remove that Alpha Channel. If this is happening on a large number of objects then you should review the file creation process and scanner settings. For additional assistance, contact OCLC Support and provide an example file.

Page ID
21171