There's some confusion here about how Shotwell rotates photos when exporting or publishing them. I've added an entry to our FAQ on the subject:
http://trac.yorba.org/wiki/Shotwell/FAQ#HowdoesShotwellrotatephotoswhentheyreexported Long story short, Shotwell uses the EXIF Orientation field whenever possible, but that opportunity is limited. If it has to re-encode the photo when exporting, Shotwell will physically rotate the pixels. In particular, note that if you export the photo at anything but its original size, the pixels will be rotated. As far as craigslist ignoring the EXIF field, that's not really craigslist's doing; it's up to the browser to respect the Orientation when displaying the photo for the user. If craigslist strips the EXIF header (entirely possible), then yes, craigslist is the culprit here. -- Jim On Tue, May 10, 2011 at 8:13 AM, Alexandre Rosenfeld < [email protected]> wrote: > On Tue, May 10, 2011 at 10:43, Bryan Keith <[email protected] > >wrote: > > > I'm not sure that this is specific to Piwigo. When I rotate a photo > > in shotwell, it just changes a flag in the header rather than > > physically changing the pixels, right? I uploaded some > > shotwell-rotated photos to craigslist, and they weren't rotated. I > > think this is because craigslist isn't paying attention to the header > > flag. > > > > The flag will probably not be present in the file itself so it's not > possible for craigslist to notice it. > > > > I guess it'd be nice to have an option in the rotation to physically > > move the pixels even though this is really just accommodating other > > people's bugs. > > > > You need to export the picture from Shotwell to get the rotated picture. > Then you can upload to craigslist and get the right rotation. By default > it's best no to change the images directly unless the user asked to. > Since piwigo exporting is a feature inside Shotwell, then it should be > uploading the rotated image already, so it is probably a bug in Shotwell. > > > > I'm just speculating here. I really don't know anything about this > stuff. > > > > Bryan > > > > > _______________________________________________ > Shotwell mailing list > [email protected] > http://lists.yorba.org/cgi-bin/mailman/listinfo/shotwell > _______________________________________________ Shotwell mailing list [email protected] http://lists.yorba.org/cgi-bin/mailman/listinfo/shotwell
