How to extract icons
 

Hi all!

I have one icon file which is grouped with multiple sizes. i want to extract them all. How i do that in linux.

First i tried in gimp, since i am completely new to photo editing, i'm completely lost in that interface. Atleast from gimp i come to know that there are multiple resolution icons stored in it (screen shot attached). I tried file->export method, but only biggest size is saved.

Next i tried 'convert' command line.
But the output image is low quality and it is blur.

I googled, but could not find answer. I even don’t know what keywords to use, i tried 'extract icon from grouped icons', export individual icon from multi resolution icon set', but couldn’t find answer.

Please help me how to extract all size icons individually.

Thanks you

Icon: http://www.iconarchive.com/show/100-...call-icon.html

If you want a particular size, why did you download the lot? There are eight individual png files on offer.

Thanks for the reply.

Its not like i just want A particular size. I want all sizes. I just gave an example. Let me expand what i really want. I'm creating (trying, in precise) a wordpress blog..., and in that i'm using that icon/png for various purpose... be it for favicon, menu, mobile theme and also for header logo. So i want to extract all grouped icons individually... so that i can use them wherever necessary.

May be i'm sounding like stupid.. sorry for that, but please help me out here. i want to use that logo for:
size 16x16 for website favicon
size 32x32 for menus
size 96x96 for android mobile bookmarks
size 120x120 for iphone bookmarks
128/256 for website header logo.

In some parts of my wordpress theme they want to upload ico file and in other parts for png file. so the doubt.

Thanks