ACDsee

irfanview can also do this.

i use "rota"

does the lossless jpeg rotate which is handy

ImageMagick ftw

Once upon a time I would write a decent batch file with a loop - but now I use the lazy method (assume Windows):

1. Do a 'dir' into a file:
c:\directory\>dir *.jpg > file.txt
2. Edit the file with a text-editor with column-editing ability (e.g., Ultra-edit)
3. Enable column editing and delete all the crap from file.txt so you just have the filenames
4. Select before every row and type the command to rotate before all the filenames:
convert -rotate 180
5. Rename file file.bat and run it

Anyone that does it any other way is doing it wrong. Amen.

c:\directory\>dir *.jpg > file.txt
2. Edit the file with a text-editor with column-editing ability (e.g., Ultra-edit)
3. Enable column editing and delete all the crap from file.txt so you just have the filenames

Or use "dir /b *.jpg > file.txt" and save 2 steps!@

I have a tool on my site to do this. It uses ImageMagick and PHP GD to do it's thing though so you may as well just go straight for ImageMagick.

for %a in (*.jpg) do convert.exe -rotate 180 %a %a-2.jpg

I used to Google and work out how to write loops like this. Then I realised that it's much much quicker to use a column editor and do it the simple way without any research. The reason is because you do it so little you just forget batch/shell syntax and always have to look it up.

Yeh, I'd use Irfanview for things like this without a second thought

x > 1

photosynth should pick up the rotation.

I reckon in the time you spent typing this thread and waiting for replies, you could have easily rotated them all manually.

Exactly what my response was going to be. 24 isn't that many.