🚀 go-pugleaf

Ben Lovejoy <ben@lovejoy.demon.co.uk> wrote:

> We have Photoshop at work, but I have never used it. Can anyone tell me how
> to turn an image background transparent?
> 
> The image is a multi-coloured logo scanned from a white page. The resulting
> image is rectangular, and includes the white background. I want to turn the
> background transparent so that I can stick it on a website and also into a
> Persuasion presentation.
> 
Change the colour mode to indexed colour and choose the web palette
option. If it is all flat areas of colour then don't choose dither, if
it's got a lot of different tones then use the magic wand to select all
the areas you want to be transparent before you change to indexed
colour, choose the dithered web palette then fill the selection with a
colour that doesn't feature in the logo. Choose Gif89a export from the
export menu and use the dropper to select the transparency colour in the
preview. Then give the file a name and choose save.

I'm not sure how it will work in a persuasion presentation. You may need
to try an alternative method (EPS). Select the background using the
magic wand tool. Choose Similar in the selection menu (to ensure you
have all areas selected - not just ones that are next to each other).
When you have a selection open the paths palette and choose Make path
from selection to create a bezier curve path of your selection. When you
have a path choose clipping path and select the name of the path for the
clipping path. Save as Photoshop EPS and ensure that it says the name of
the path in the clipping path pop-up menu. 

Bear in mind that with both these types the original size is the size
that you will be stuck with so if there's loads of white space around
the logo then crop the image down using the crop tool. Hope this is of
some use to you.

-- 
alan@macropolis.demon.co.uk
Original Skinhead Heaven - a piece of paradise right here on earth
http://www.macropolis.demon.co.uk/heaven.htm