Add auto-increment #, date and meta-data

I think this tool is helpful as is - but what would make it a truly awesome photographer's utilitiy would be if it allowed me to add a serial number - to either/both the image watermark and the photo's meta-data. (Adding/changing any other meta-data during processing would be also excellent!) The feature should have an optional 'starting number' (in case you have already started identifying images in this way or want to skip to a certain starting place) and allow a fixed string for prefix or suffix string to the id number; resulting in like: "DLK-9999" or "© 2016 ArtistName image# 9999". If it remembered the last serial # used would be great. Better would be a history file where I could find a log of of all id's created on image file names.

It not asking too much, appending the serial number to the file name would also be a nice feature - although I have another utility that could do that with some effort.

That constant string before/after the (optional) ID should include the option of a configurable date/time stamp (as a string token? or at least in a layer?) that increments per the date/time of processing the watermark. Again, this data should be processed in the watermark and/or the meta-data. So we could time-stamp the series like: "2016 Yosemite shoot, image 9999 version 3, processed MM/DD/YYYY HH:MM:SS" or "Version date: DD/MM/YY HH:MM". This would allow me to create a template project and all I have to do is add my photo generation folder and process.