When I export PNGs from Photos and import to Adobe Lightroom Classic, the capture date in the metadata is 12/7/2019, no matter when it was taken. If I export the same files as JPGs or Tiff the date is correct. If I look at info in my finder, all dates are the same. It's only when PNGs are imported to Lightroom that the date looks wrong. Is this a Lightroom bug or a Photos bug? How do I fix it??
iMac 27″, macOS 10.15
It's not Apple's bug, nor Adobe's either. The group that created the png format fell apart and it was never finished. The flaw is in the png specification. It has very poor metadata support.
I think for my purposes it's probably easier to change the capture date in Lightroom. Thanks for the info. Hopefully someday Apple will fix that bug in PNG creation/export and we won't need these workarounds!
AFAICT, metadata like EXIF is somewhat hit or miss for PNG's.
Thanks for the reply. Is that on the Apple side or the Adobe side that it gets confused?
Commentary on Meta Information Formats (or "Why this or that Format Sucks"):
png files sometimes have an incorrect date or location in iPhoto or Photos. Below is my old memo how to fix it in GraphicConverter (mainly iOS png screencaptures):
iPhoto looks at the XMP date so it might be wrong in iOS .png screen captures. Delete in GC via Browser > Actions > Metadata... > Remove Metadata... > XMP.
iPhoto may not see GraphicConverter location data in iOS .png from GPSless devices. To fix, delete in GC via Browser > Action > Metadata... > Remove Metadata... > all. Then add ratings. Then paste GPS. Then Date > Set Modification to Creation date.
I am not sure, I something on the net about adobe using XMP sidecar files with PNG's, but I don't think Photos saves those.
Photos PNG Exporting with Wrong Date?
