XnView Software

Hello,

I have questions to XnViewMP 0.64 open in viewer.
With menus "File -> Format settings -> Write" it is possible to enter preferences for various supported file formats.
For *.JPG files I check all checkboxes "Keep EXIF", "Keep IPTC", "Keep XMP and "Keep Icc profile" that control writing of metadata.
This is the starting point of the following

1)
In case of I select now a file format different to JPG, PNG or TIFF (e.g. BMP or JPEGXR) these checkboxes "Keep EXIF", "Keep IPTC", "Keep XMP and "Keep Icc profile" become disabled. Whether they are checked or unchecked depends on my settings done for *.jpg files.
The disabled checkboxes tell me that they are always checked (in my case).
But the behaviour for these file formats is as in case of unchecked checkboxes. (I guess it depends on the format itself).

So in my opinion it would be better to set the checkboxes
- to unchecked and disabled or
- to invisible
in order to avoid misunderstandings.

2)
I did some short tests with*.jpg images and tried to save them as PNG or TIFF files. Here I have seen that the MakerNote tags (which belong for me to EXIF) are not stored. Is this an error?

In case of a PNG file also EXIF metadata and also IPTC/Photoshop tags are not stored. (Again I guess it depends on the format itself).
Should the corresponding checkboxes be handled as proposed in 1)?

In case of TIF file the IPTC/Photoshop metadata are not stored correctly. Exiftool gives a warning for the new file.
Is this an error?

Best regards
Herb

But the behaviour for these file formats is as in case of unchecked checkboxes. (I guess it depends on the format itself).

Yes, it depends on the format. Currently only the formats which support embedding of XMP are written automatically. Other formats which need sidecar must be updated manually (View | Update files from database...)

So in my opinion it would be better to set the checkboxes
- to unchecked and disabled or
- to invisible
in order to avoid misunderstandings.

Of course you have a point but the real solution is here: http://newsgroup.xnview.com/viewtopic.p ... 45#p118264 (especially the point 1)

Is not correct to lose the metadata if the program supports it just because of GUI/small shortcomings.

herb wrote: In case of a PNG file also EXIF metadata and also IPTC/Photoshop tags are not stored. (Again I guess it depends on the format itself).
Should the corresponding checkboxes be handled as proposed in 1)?

Strange, IPTC is stored in PNG

In case of TIF file the IPTC/Photoshop metadata are not stored correctly. Exiftool gives a warning for the new file.
Is this an error?

Could you send me original and converted file?

Hello Pierre,

thanks for your investigations.
Because of the big size of the files I sent it via mail. I sent the *.jpg image which I used for my tests.
After "save as PNG" no IPTC data are stored inside the png image. Maybe this is because IPTC data is stored with Photoshop tags.
After "save as TIFF" Exiftool gives a warning: Bad IPTC data tag (marker 0x0)
I sent the jpg and the tiff.

Best regards
Herb

herb wrote: After "save as PNG" no IPTC data are stored inside the png image. Maybe this is because IPTC data is stored with Photoshop tags.

Right, png doesn't support IPTC only XMP

After "save as TIFF" Exiftool gives a warning: Bad IPTC data tag (marker 0x0)

right, i'll check

See Issue 335 for current status and details.