About Importing And Exporting Photoshop Layer Masks; Grouping Objects To Form A Mask - MACROMEDIA FIREWORKS 8-USING FIREWORKS Use Manual

About importing and exporting Photoshop layer
masks
In Photoshop, you can mask images using layer masks or grouped layers. Fireworks lets you
successfully import images that employ layer masks without losing the ability to edit them.
Layer masks are imported as bitmap masks.
Fireworks masks can also be exported to Photoshop. They are converted into Photoshop layer
masks. If the masked objects include text and you want to maintain text editability in
Photoshop, you must select Maintain Editability over Appearance when exporting.
If text is used as the mask object, it is converted to a bitmap and is no longer editable as
text after it is imported into Photoshop.

Grouping objects to form a mask

You can group two or more objects to create a mask. The topmost object becomes the
mask object.
You can group objects as either bitmap masks or vector masks. The stacking order determines
the type of mask applied. If the top object is a vector object, the result is a vector mask. If the
top object is a bitmap object, the result is a bitmap mask.
For more information about vector and bitmap masks, see "About masks" on page
Masking images 221
211.