On 10-12-05 9:36 AM, David Vincent-Jones wrote: > I have run into a problem when I export RS files to Digikam (my image > management system). > > EXIF data is not being displayed for PNG files although it is being > correctly displayed for TIF and JPG formats. > > If I examine RS PNG files with Exivtool all the metadata appears to be > correctly in place but if I use Exiv2 to examine the data there is a > failure to read/see any metadata. > > I am really not sure on which heads the problem lies. It does appear > odd that this difficulty only occurs with the one format (PNG). From > an image management standpoint it would be really nice to see this > problem addressed.
Exif isn't supported in PNG according to the PNG spec. If you read <http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/PNG.html>, you'll see that ExifTool supports it despite being non standard, because some tools seems to write them. If you really want Exif metadata and lossless compression, use TIFF. It is more portable. Hub _______________________________________________ Rawstudio-users mailing list [email protected] http://rawstudio.org/cgi-bin/mailman/listinfo/rawstudio-users
