How can I have transparent background on b/w of drawing?

I have a lot of technical drawings saved as tiff files requiring the transparent outside bottom while retaining the white background in the drawings.  I need this so that I can put the drawings in other documents created in ID CS4 and AI CS4.  No idea how I can achieve this?

Thank you

Mel

I would say your best bet is to use the magic wand tool, (make sure contiguous + anti-aliasing are verified both) and select the area around the outside of the drawing, then use the button [refine edge...] close the boxes to check and adjust the settings of the edge and finally, remove the outer.  Make sure that the layer you are editing is not a background layer and if this is the case, right click on the background layer, then select "background layer".

Hope that helps!

Jesse

Tags: Photoshop

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