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Hi!
I am trying to place an image with transparency created with alpha channel in my artwork, but the alpha channel won't work and in the links panel the transparency is set to "no".
In InDesign the alpha channel works fine, so I know there is no problem with the image / alpha channel per se.
Upon placing the image (TIF) into Illustrator, I am not getting any import options, although I have checked the box for this option. Are there none available?
Have found a work around - (deleting the background), but it bugs me that I can't work with alpha channels, so it would be great to understand why this doesn't work in this case above.
Thanks in advance!
/Charlotta
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One idea: try PNG instead.
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It is a file for print, so PNG won't do the work as it is RGB ...
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That's a pity... how about PSD?
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Tried that one, with the same result - works in InDesign but not in Illustrator ...
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Layer masks are supported in Illustrator, Alpha channels not.
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Is that so ... that was interesting to hear!
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Hi,
Can You please post a screenshot of your TIFF into Illustrator document?
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Can't do that due to company secrecy but it is an ordinary product image with white background.
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Are you sure you ticked the checkbox "Save Transparency' in the second dialogue when saving as tiff out of Photoshop?
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Yes, I am sure. (Otherwise it wouldn't work in InDesign either.)
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You can use a Layer Mask instead of an Alpha channel.
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Ton,
A layer mask is an alpha channel (look in the channels panel when you make one)
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A layer mask appears next to the layer and shows the transparency of the layer in the image window.
An Alpha channel shows only how it affects transparency when an application reads and applies it.
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Whatever you do to the 'layer mask' is simultaneously written to the 'alpha channel' they are essentially one and the same thing?
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A Layer Mask is a "modern" Alpha channel.
Both can be used for transparency but the difference is that a Layer Mask shows you the transparency in Photoshop and an Alpha channel does not.
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It's simply an Adobe GUI thing, whatever, I give up.
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I don't think it is simply an Adobe GUI thing.
Applications can only read one Alpha channel (although you may choose which one).
But in Photoshop every layer can have its own Layer Mask, combined they have the same funtion as an Alpha channel.
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Just a note: if you are working with a complex, layered PS you may want to place the layers in a "Layer Group" and create a single "Layer Mask" on the top-level group.
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rcraighead wrote
Just a note: if you are working with a complex, layered PS you may want to place the layers in a "Layer Group" and create a single "Layer Mask" on the top-level group.
Re-reading this, I am not sure why you mention a "top-level" group.
If you want a single mask applied to all layers, group them all and apply the mask to the group.
If you have more than one group or groups and layers, you may need to apply layer masks to all of them.
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If you nest the layers in PS, the “top-most layer" (or "master layer") can contain a mask that affects all the layer content, including sub-layers. My Photoshop terminology may be confusing.
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I am afraid I don't get it, you mean a Layer Clipping mask?
Can give a screendump of the layers panel?
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Pretty weak illustration, but the video shows 2 groups with a group and layer inside "Group 2". The raster mask on "Group 2" effects anything in the group, but ignores the bottom layer which is outside the group. I've editing the mask properties to make it translucent and blurred.
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I see what you mean. Everything has to be inside a group (also other groups and layers) to be affected by the mask of that group.