Adobe Photoshop CC 2014 v.14.xx - Manual (Page 839)

Saving files in graphics formats
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Bit depth (32-bit only)
Image Compression
Note:
Pixel Order
Byte Order
Save Image Pyramid
Save Transparency
Layer Compression
Save in TIFF format
Save in JPEG format
Save in PNG format
Save in GIF format
Save in Photoshop EPS format
Save in Photoshop DCS format
Save in Photoshop Raw format
Save in BMP format
Save in Cineon format (16-bit images only)
Save in Targa format
Save in TIFF format
TIFF is a flexible raster (bitmap) image format supported by virtually all paint, image-editing, and page-layout applications.
1. Choose File > Save As, choose TIFF from the Format menu, and click Save.
2. In the TIFF Options dialog box, select the options you want, and click OK.
Specifies the bit depth (16-, 24-, or 32-bit) of the saved image.
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.
JPEG compression is available only for opaque RGB and grayscale images that are 8-bits-per-channel and no more than 30,000
pixels wide or high.
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.
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.
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.
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.
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.
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