Symptoms

The following error message appears - The operation cannot be performed because no pages are specified 

Resolution

The issue is associated with the AddImageFile method arguments, especially with the IIntsCollection one. 
Usually, it appears when the mentioned argument is left empty, however, this parameter is optional and may be 0, in which case all the pages of the opened file will be added to the document.

More info on theAddImageFile Methodcan be found here:AddImageFile