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I want to print a single image that will ultimately be almost 2 metres high, and it's perfectly all right for me to do so by printing several A3 sheets of paper and gluing them onto a big piece of cardboard. How should I go about this? (I'm on Windows XP.)

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up vote 5 down vote accepted

Poster Printer works with your existing printer to allow you to print documents at a much larger size than would fit on a single printed page

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(open source, Windows)

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Thanks! However, it keeps failing with "The Printer returned an error" and it will not let me print anything. Have you come across that before? – Smashery Sep 10 '09 at 4:09
nope, works fine for me whenever i print a banner. – Molly7244 Sep 10 '09 at 4:18
I think it was that it was a network printer. I ended up just printing to PDF using CutePDF and then printing from that. Works great, thanks! – Smashery Sep 10 '09 at 4:28
you're more than welcome. – Molly7244 Sep 11 '09 at 2:45
I didn't try anything funky other than running the .exe as admin, but this wouldn't install on Windows 7. – Gordon Gustafson Apr 3 '13 at 23:14

PosteRazor cuts a raster image into pieces which can afterwards be printed out and assembled to a poster. PosteRazor is open source and is available for Windows, Mac OS X, and Linux.

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+1 This worked pretty well on Windows 7, although it didn't like my PNG so I had to convert it to JPEG first. – Gordon Gustafson Apr 4 '13 at 1:04
Aparently, they have updated it - I had no problems with my PNG file. – Tomáš Zato Sep 8 '14 at 9:50

Use rasterbator

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Online interface is great, but is there a way to keep the original image rather than turning it into dot version? – Gordon Gustafson Apr 3 '13 at 23:10
Also, it forces various effect on images - simple splitting is not an option. – Tomáš Zato Sep 8 '14 at 9:44

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