Poster size digital image to span across 20 4x6 prints

[OxideNOS]

I currently have a picture on my pc and i want to use it as a poster. As we all know there many deals out there to get some free 4x6 prints. So I was wondering, if i could span the picture i have to lets say about 25 4x6 prints and then put them together on a cardboard would make a good homemade project for a great poster. I have no clue how to split the image in 25 pieces. Please let me know if there is such a software out there, or any other alternatives. thanks.

[crazzy88ss]

The Rasterbator.

http://homokaasu.org/rasterbator/

It does things like this

[OxideNOS]

this is the same kind of stuff i want to do. The only drawback using rasterbator is the it only saves files as pdf. I want more options. can i do it with photoshop? thanks for the fast reply

[SirEvan]

Are you that broke? I get insanely gorgeous poster prints from my lab at about 8$ a sq ft, or about 20$ or so for a 13x19, about 26$ for a 16x20... Light jet prints are second only to seeing something in person. You can't beat the quality, and if you were to use 4x6's, you'd see the edges of the cards.

www.calypsoinc.com