Image download in difference size

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1

Hi Friends,

I have created image blog. i want to embed such gadget which allows the visitor to download in difference size.

Can anybody help me out how it can be done ? If any other template which having such kind of feature then please suggest me.

Thanks in advance

2

What software are you using?

3

Hello everyone,

Can anyone also suggest me how allow the user to download image in different size ?
provide full information with step by step.