Selects all the images in a PDF document that contain OPI (Open Prepress Interface) information.
OPI images are treated special as they are assumed to be preview images. They will for example not be preflighted as other images would be.
OPI (Open Prepress Interfaces) replaces high resolution images with "preview" images; low resolution substitutes which are stored in the PDF, together with the path to the high resolution images. This facilitates data storage and data transfer of PDFs with a large number of images.
The following finds any such images and logs them as a caution:
Select images with OPI info Log selection <!-- In the field, type your message (ex. 'Images with OPI comments were found in this PDF'), then select Log as warning at the bottom -->