I would say 
Adobe photoshop (any version from 7 onwards)
Paint shop pro (usually shareware)
Gimp (completely free but as usable as Photoshop)
http://gimp-win.sourceforge.net/ I assume you are using windows as linux
comes with this automatically

If you are adding any lettering or design - I wholly recommend you use a
vector based art package

Adobe illustrator 
Inkscape (free)
Corel Draw 
And the such like

As otherwise an A2 poster at full print resolution (300dpi) will be about
200mb +

I hope this helps 

I use most of these packages on a daily basis for work, feel free to ping me
off list if you need more help/info.

Cheers

Chris

-----Original Message-----
From: Luis Moreira [mailto:Luis.Moreira@jet.uk] 
Sent: 01 May 2007 09:59
To: Microcontroller discussion list - Public.
Subject: [OT]: Photos



Hi All,
I want to do an A3/A2 poster which will be a compilation of several
digital photos. Do any of you know of any software that can do that?
Best regards
		Luis 

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