Using the Rendering property, you can perform the following checks:
- Custom transfer curve: Checks for the custom transfer curves in the PDF document. Transfer
functions are used for creative purposes, artistic effect and to correct the characteristics of
a specific and may be a poorly calibrated device.
- Custom halftone: Checks for the halftone transfer curves in the PDF document. Halftoning is
a method of printing shades using a single color ink.
- Custom UCR: Checks whether custom Undercolor Removal (UCR) definitions have been included in
the PDF document.
- Custom BG: Checks whether custom Black Generation (BG) curves have been included in the PDF
document.
- Rendering intent: Checks whether any rendering intents were used in the PDF document.
- Wrong intent text/line art: Checks whether any specific rendering intents were used for text
and for line art in the PDF document.
- Wrong intent images: Checks whether any specific rendering intents were used for images in
the PDF document.
- Halftone phase: Checks whether any halftone phase are present in the PDF document.