XnView Software

XnView: MP 1.6.4 - 64 bit
OS: Mac - 64bit

When rating the image by Synology Photos,
rating color star icons cannot be shown in browser/viewer.

This problem does not occur if it rated by XnView.

Effect:
I always manage my images with XnView and Synology Photos.
So, the ratings must be synced between 2 applications.
This problem break my management...

To reproduce:
1. Rate by Synology Photos.
2. Open the image by Xnview

Actual behaviour (bug):
The image rated by Synology Photos does not show rating color stars. Expected behaviour:
The image rated by Synology Photos shows rating color.

Consideration:
This problem occurs maybe since Synology Photos 1.6.2-0710 that is released in some days.
From this version, Synology Photos mayby start using `Rating` and `Rating Percent` in Exif Tag.

The below image is rated by Synology Photos. These Exif tags are not added by XnView.
The below image is rated by XnView. So, I think 2 applications depend on different tags for rating.
- Synology Photos: Exif `Rating` ( `Rating Percent` )
- XnView: XMP `Rating` ( `Rating Percent` )

If the above is correct, I want XnView to support Exif `Rating` tags, and it has higher priority than other `Rating` tags.

Appendix: Settings:

I found the doc that Synology uses Exif tags.

https://kb.synology.com/en-uk/DSM/tutor ... os_support

Rating equals the Image.Rating and Image.RatingPercent tags in the Exif standard and the Rating, RatingPercent, and MicrosoftPhoto tags in the Xmp standard.

XnView use the standard XMP field, it seems that this field is set too. Could you send me a sample file

Thank you for quick reply.
Sorry I forgot attaching. I do it now. See the attachements.

Synology Photos embed rating information into the Exif field.
I don't know whether it's common specification or not in the world.

It works here. So i think that file doesn't change 'file size' or 'modified date'. If you use 'View>Update catalog from files' after selecting these files?

Thanks!! It works for me.