[martin_fierro]

Pretty much any paint program can do what you want.

Just be sure to save the image into .jpg or .gif (compressed) format.

[Cyber Liberty]

If you are running Windows XP, you can do it directly from the explorer window. RIght-click the file's icon, and "rotate photo" should appear as an option in the pop-up menu.

[TChris]

Check these out:

• Image Genius
• Auto Imager
• Eye Batch

[Publius6961]

Photodex Corp's Compupic Pro will do batch files, and is quite reasonably priced. Just don't forget to do the batch massaging to a set of copies of the photos...

[Khepera]

PaintshopPRO 8 will do it.

[Da Bilge Troll]

Photoshop.

[Echo Talon]

photoshop

http://www.russellbrown.com/tips_tech.html

[idkfa]

Irfanview will do batch rotate, resize, rename, conversion, etc, and it's freeware.

http://www.irfanview.com/

[Echo Talon]

Google's Picasa2 will do everything you want.. its free and works on Windows and linux... install it and choose picture/batch edit>>

http://picasa.google.com/

[Echo Talon]

better yet, with Google Picasa 2(its free) just highlight all the pictures you want to rotate and at the bottom just press the rotate button the choose "export" really simple... if you want to change the color of the pictures or rename them at the top choose picture/batch/"then whatever you want to do"...