IPDFALogo Design Contest

I like it a lot especially the balck one - wonder how it will looks as a on white background as the website has white background.

Update work, #1 in white background, thank you.

(This comment references Entry #3)

Thank you Ian. The black background make the colors really pop out . But I need one in white background as well . The pink is too feminen ( as we have men and women) so I think the grey one is better choose

Here I try give another graphic option and its color as well. Thank you

(This comment references Entry #6)