Not only can II2LN extract EXIF and IPTC information from your images, it can also write EXIF and IPTC information to your images! Via the powerful import options ReplaceEXIF, ReplaceITPC, AppendIPTC and InsertIPTC can you set almost all EXIF and IPTC values.
II2LN will automatically update some of the values for you too, if you for example has use the AutoOrientation import option, II2LN will ensure that the EXIF value for Orientation is correctly set.
II2LN will separate between three distinct operations on EXIF or IPTC values:
This gives you pretty good control over where to put your new values.
Remember that you can also clear any existing meta data (both EXIF and IPTC) by using the ClearExistingMetadata import option before any Replace/Append/Insert options.