TIFF is a flexible raster (bitmap) image format
supported by virtually all paint, image-editing, and page-layout
applications.
Choose File > Save As, choose TIFF
from the Format menu, and click Save.
In the TIFF Options dialog box, select the options you
want, and click OK.
Bit depth (32‑bit only)
Specifies the bit depth (16‑, 24‑, or 32‑bit) of the
saved image.
Image Compression
Specifies
a method for compressing the composite image data. If you’re saving
a 32‑bit TIFF file, you can specify that the file be saved with predictor
compression, but you don’t have the option to use JPEG compression. Predictor
compression offers improved compression by rearranging floating point
values, and works with both LZW and ZIP compression.
Pixel Order
Writes the TIFF file with the channels data interleaved
or organized by plane. Previously, Photoshop always wrote TIFF files
with the channel order interleaved. Theoretically, the Planar order
file can be read and written faster, and offers a little better
compression. Both channel orders are backward compatible with earlier
versions of Photoshop.
Byte Order
Selects the platform on which the file can be read. This
option is useful when you don’t know what program the file may be
opened in. Photoshop and most recent applications can read files
using either IBM PC or Macintosh byte order.
Save Image Pyramid
Preserves multiresolution information. Photoshop does not
provide options for opening multiresolution files; the image opens
at the highest resolution within the file. However, Adobe InDesign
and some image servers provide support for opening multiresolution
formats.
Save Transparency
Preserves transparency as an additional alpha channel when
the file is opened in another application. Transparency is always
preserved when the file is reopened in Photoshop.
Layer Compression
Specifies a method for compressing data for pixels in
layers (as opposed to composite data). Many applications cannot
read layer data and skip over it when opening a TIFF file. Photoshop,
however, can read layer data in TIFF files. Although files that
include layer data are larger than those that don’t, saving layer
data eliminates the need to save and manage a separate PSD file
to hold the layer data. Choose Discard Layers And Save A Copy if
you want to flatten the image.
Note: To have Photoshop prompt
you before saving an image with multiple layers, select Ask Before
Saving Layered TIFF Files in the File Handling area of the Preferences dialog
box.