|I don't think there is any software to do that.|
I don't know what kind of business you are in but I would advise you not to FAX unsolicited brochures to companies that you want to do business with.
I am a builder and I really get pissed when I get a FAX like that. I don't believe it will get you any business. Might have the opposite affect. Makes you look cheap and inexperienced.
I suggest that if you have no money for advertising that you make up some brochures on your PC and visit some companies personally. Have the brochure cover the details like what you can provide and any licensing and insurance information required.
Don't lie to anyone and don't be too pushy. If you can't get in to meet with the boss then leave a brochure with whoever you can.
Five good leads are better than 100 blind contacts.