Huge Poster

what image resolution to use for a huge poster?

I need to find a pic to use for a big big poster im making, but when i get them enlarged, i dont want them to come out pixelized? what size resolution, and image size should i look for when searching? and is it possible to make a smaller image work? this is going to be really huge though

+ I think you need a large picture at as high a resolution as possible to be able to enlarge it to poster size. You may be able to redo the resolution in a program like Paint then expand it again. I know that scans get bad quickly so try Bit Map images if you can find them as they are typically better as far as fine resolution.
Good Luck

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