Windows doesn't seem to be able to read that format. See this Exiftool Forum post.Įdit 3: In exiftool ver 10.71, Phil Harvey changed the way exiftool wrote the PNG:CreationTime tag to follow the PNG RFC-1123 format ( Link Link). PNG:CreationTime may not show up properly when written by exiftool. It seems to stop reading at the PNG IDAT chunk even if there is data beyond it, which is allowed by the spec.

AllDates is an Exiftool shortcut for three EXIF tags: EXIF:DateTimeOriginal, EXIF:ModifyDate, and EXIF:CreateDate.Įdit 2: At some point there appears to have been a change in the way Windows reads PNG metadata. The proper command would have been '-CreationTimeAllDates' * Properly formatted, but again it's a problem with PNGs lack of support for EXIF data. But the equal sign is setting CreationTime to the value now, not the DateTime of now. There should have been a 'No writable tags' error message.Įxiftool '-creationTime=now' * 'Now' is an Exiftool pseudo-tag for the current date/time.

creationTimeCreationTime.Įxiftool '-creationTimeFileModifyDate' * Properly formatted, but as mentioned, PNGs doesn't support EXIF tags (DateTimeCreated is normally an EXIF tag though it can also be an XMP tag). I apologise there is something so simple I am missing but after trawling through google results and numerous posts on here I am no closer.Īs long as you have the filename set as you mention, the command you want to use isĮxiftool '-PNG:CreationTime) e.g. I have tried many combinations of the following with no success. I've reviewed a few posts on here using the ExifTool command line but none of them seem to detail how to set the 'date taken' property (as shown in windows explorer and lightroom etc) although as I understand it its defined in the exif as: Creation Time? (maybe). Unfortunately there is no DateTaken saved to the image and I would like to add it for filing purposes and to satiate the OCD monster growling in my chest. The files are named for the date they were captured: yyyymmdd_hhmmss.png I have a load of PNG's that my wife wants to keep that have been captured from our Baby Monitor.

Exiftool createdate datetimeoriginal