ImageGear for C and C++ on Linux v18.8 - Updated
enumIGPDFRevision
API Reference Guide > PDF Component API Reference > PDF Component Enumerations Reference > enumIGPDFRevision

Specifies /R revision value.

Values:

IG_PDF_REVISION_2 2 Support by Acrobat 3.0 and up.
IG_PDF_REVISION_3 3 Support by Acrobat 5.0 and up.
IG_PDF_REVISION_4 4 Support by Acrobat 6.0 and up.