xmp-xmp:CreateDate
Posted: Sat Mar 06, 2021 9:16 am
Hello Pierre,
I am working on a Windows 10 system with version 0.98.2.
When I write XMP-metadata to a file - that does not contain any XMP metadata - with dialog "Edit XMP..."
also the fields xmp-xmp:CreateDate and xmp-xmp:ModifyDate are created/written.
In case I modify again some XMP-metadata only field xmp-xmp:ModifyDate is updated.
To store the date/time of the last modification in field xmp-xmp:ModifyDate is ok.
But to store date/time of very first writing XMP-metadata into field xmp-xmp:CreateDate is wrong.
The XMP standard "XMP specification part 1" states clearly this this field must contain date/time when the whole file/image was created.
So xmp-xmp:CreateDate should be taken from EXIF:DateTimeOriginal.
Further I would like to propose that also field xmp-xmp:MetadataDate is updated in case of changing XMP-metadata.
Thanks in advance
herb
I am working on a Windows 10 system with version 0.98.2.
When I write XMP-metadata to a file - that does not contain any XMP metadata - with dialog "Edit XMP..."
also the fields xmp-xmp:CreateDate and xmp-xmp:ModifyDate are created/written.
In case I modify again some XMP-metadata only field xmp-xmp:ModifyDate is updated.
To store the date/time of the last modification in field xmp-xmp:ModifyDate is ok.
But to store date/time of very first writing XMP-metadata into field xmp-xmp:CreateDate is wrong.
The XMP standard "XMP specification part 1" states clearly this this field must contain date/time when the whole file/image was created.
So xmp-xmp:CreateDate should be taken from EXIF:DateTimeOriginal.
Further I would like to propose that also field xmp-xmp:MetadataDate is updated in case of changing XMP-metadata.
Thanks in advance
herb