Print a big size poster

I have a powerpoint poster  size 56" x 14", and i want to print 60" x 20", is it possible and not loose any resolution? Is there any other program i can do this?
velascohAsked:
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Cornelia YoderArtistCommented:
It doesn't depend on the final size, but on the pixel resolution.

I recommend 300 pixels per inch, if you want it without any pixels being visible.

So for 56", you would need the digital image to be 16,800 x 4200 pixels.
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velascohAuthor Commented:
ok that works but can i print a poster 60" x 20" in a different program other than Microsoft powerpoint?
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Cornelia YoderArtistCommented:
How do you plan to print it?  

If on your own printer, all you need is the digital image, nothing to do with PowerPoint or any other program.  

Just create a large enough (pixels)  .bmp or such from any program and then send the image to your printer (or take it to FedEx Office or some nearby commercial printer on a CD).
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velascohAuthor Commented:
We have a plotter HP Designjet 500. I can print it from there but i need the software to print 60" inches ob more.Question is can Photoshop do this? Powerpoint only goes up to 56" inches.
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Cornelia YoderArtistCommented:
Well, try opening a 16,800 x 300 window in Photoshop and try printing it at 60" x 1".
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velascohAuthor Commented:
I will try it today and let you know asap.
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velascohAuthor Commented:
I can't make .ppt file to jpg without loosing resolution but i can clean it up in photoshop.Thanks
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Cornelia YoderArtistCommented:
Wow, 20 whole points, thank you.
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