If you have a TIFF file consisting of multiple individual images (individual scans of multiple pages, for example) and you can't open the file with Photoshop:
Open the tiff file in Adobe Acrobat Professional 7.0 (for large files this will take some time).
Pull down the Acrobat menu and select Preferences.
Under categories, click on Convert From PDF
Under Converting from PDF, click on JPEG
Click on the Edit Settings button
Under File Settings, pull down Grayscale and select JPEG (Quality: Maximum)
Under File Settings, pull down Color and select JPEG (Quality: Maximum)
Click on the “Picture Tasks” button and select Export Pictures.
If in the toolbar the “Picture Tasks” button doesn’t display, click on the
“Pages” tab on the left side of the window. The Picture Tasks button will now appear in the toolbar.
In the dialogue box that opens
Click on the Select All button
Drag the slider (image quality) all the way to the right
Under File Names, select Common Base Name, and type in the directory into which you want the individual files to go, with a dash (-) at the end. Example: MDo-32-32-
Under Save In, click the Change button and select the directory you want the files to go.
Click on the Export button. Individual jpg files will be created for each page in the directory you specified.