I have a bunch of images with different create dates. I want to normalize them all to a given date (say today's date) using a batch file (Windows). Can ExifTool set dates? I only see documentation and examples for shifting dates. To shift the date to present, I would need to somehow read the date for each file, calculate the difference, and then shift. That would be ok, but I don't know how to read the create date into a variable using ExifTool.
One obstacle for me is that I don't speak Perl. I do Python, and there is pyexiv2. This allows to write the "date", but I can't see anywhere if that is just create date or all dates.
Edit
Here shows using, for example,
exiftool -AllDates='2010:08:08 15:35:33' -overwrite_original IMG_01.jpg
in Ubuntu linux, but I could not get that to work in Windows.
As a hack, I tried
exiftool -AllDates+=2015:03:02 IMG_8220.JPG
which set the dates to the time executed, probably because the shift was so completely crazy. But I'd like to have control, and, specifically be able to change YYYY:MM:DD without changing the time.
Consequently, help still appreciated.