You can use Bioprofil. It works pretty well.
> From: Michael Clayton[SMTP:clayton at bcm.tmc.edu]
> Posted At: Saturday, March 13, 1999 12:20 AM
> Posted To: bionet.software
> Conversation: Software for DNA Analysis
> Subject: Software for DNA Analysis
>> I am starting a competitive PCR project. I plan to use agarose gels
> then photograph them and scan them into the computer and find the
> density of the bands. My problem is that I can't get any of the
> software that I have tried to work consistently. So far I have tried
> UTHSCSA's ImageTool and Scion's Image. I would appreciate any advise
> from someone that has gotten this to work. At first I was trying to
> around buying an expensive analysis program, but I am willing to now
> I know that it will do what I want it to.
> Michael Clayton