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My Poster is only 850kb! How do I make it hi-res?

Aug 18, 2011, 14:28
Post: #1
My Poster is only 850kb! How do I make it hi-res?
I am trying to create a 30" 24" poster that contains (12) 3" x 4" photos. I have resized all of the photos from 2.5MB, but the completed poster is only 850kb. I do not think that if I were to print this out to 30" x 24" that it would be 'poster quality'.

I did notice something strange... when I have the file open I noticed that at the bottom left it has (53.8MB) in parenthesis.

Can anyone help me to create the correct resolution that I need to make sure this poster looks like an actual poster?

Thank you,
Craig
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Aug 18, 2011, 15:50 (This post was last modified: Aug 18, 2011 15:50 by rich2005.)
Post: #2
RE: My Poster is only 850kb! How do I make it hi-res?
I'm assuming you are going to get your poster printed at some sort of "printing house". I occasionally get a panorama printed this way.

FWIW I would start off by opening a new image, choosing any one of the 300 ppi presets and change the size to 30" x 24".

It will be a big image and you will probably get a warning about the size. Keep going.

Thats your blank canvas and you can open images then copy and paste into it.

Here is an example, http://i.imgur.com/dL2F0.jpg with some images pasted in. It saves to a 2.5 MB 85% jpeg. That is mostly white so expect a bit larger but not enormous.

One thing if you are taking it to be printed, your image will be 'landscape', saves a lot of hassle if you rotate it yourself for printing as 'portrait'

** https://www.gimp-forum.net/ now answering questions**
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Aug 18, 2011, 17:51
Post: #3
RE: My Poster is only 850kb! How do I make it hi-res?
Wow! Thank you very much for the help. I think this will solve my problem. I appreciate your efforts.
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