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.

Note: 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.

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.

Matte

Offers matte color choices to simulate the appearance of background transparency in images that contain transparency.

Image Options

Specifies the image quality. Choose an option from the Quality menu, drag the Quality pop-up slider, or enter a value between 0 and 12 in the Quality text box.

Format Options

Specifies the format of your JPEG file. Baseline (“Standard”) uses a format recognized by most web browsers. Baseline Optimized creates a file with optimized color and a slightly smaller file size. Progressive displays a series of increasingly detailed versions of the image (you specify how many) as it downloads. (Not all web browsers support optimized and Progressive JPEG images.)

Note: Some applications may not be able to read a CMYK file saved in JPEG format. Likewise, if you find that a Java application can’t read a JPEG file, try saving the file without a thumbnail preview.

None

Displays the image in a browser only when download is complete.

Interlaced

Displays low-resolution versions of the image in a browser as the file downloads. Interlacing makes download time seem shorter, but it also increases file size.

Normal

Displays the image in a browser only when download is complete.

Interlaced

Displays low-resolution versions of the image in a browser as the file downloads. Interlacing makes download time seem shorter, but it also increases file size.

Note: You can also save an image as one or more GIF files using the Save For Web & Devices command.

Preview

Creates a low-resolution image to view in the destination application. Choose TIFF to share an EPS file between Windows and Mac OS systems. An 8‑bit preview is in color and a 1‑bit preview is in black and white with a jagged appearance. An 8‑bit preview creates a larger file size than a 1‑bit preview. See also Bit depth.

Encoding

Determines the way image data is delivered to a PostScript output device. Encoding options are described below.

Include Halftone Screen and Include Transfer Function

Control print specifications for high‑end commercial print jobs. Consult your printer before selecting these options.

Transparent Whites

Displays white areas as transparent. This option is available only for images in Bitmap mode.

PostScript Color Management

Converts file data to the printer’s color space. Do not select this option if you plan to place the image in another color-managed document.

Note: Only PostScript Level 3 printers support PostScript Color Managementfor CMYK images. To print a CMYK image using PostScript Color Managementon a Level 2 printer, convert the image to Lab mode before saving in EPS format.

Include Vector Data

Preserves any vector graphics (such as shapes and type) in the file. However, vector data in EPS and DCS files is available only to other applications; vector data is rasterized if you reopen the file in Photoshop. This option is only available if your file contains vector data.

Image Interpolation

Applies bicubic interpolation to smooth the low-resolution preview if printed.

The dialog box includes all the options available for Photoshop EPS files. Additionally, the DCS menu gives you the option of creating a 72‑ppi composite file that can be placed in a page-layout application or used to proof the image:

DCS 1.0 format

Creates one file for each color channel in a CMYK image. You can also create a fifth file: a grayscale or color composite. To view the composite file, you must keep all five files in the same folder.

DCS 2.0 format

Retains spot color channels in the image. You can save the color channels as multiple files (as for DCS 1.0) or as a single file. The single-file option saves disk space. You can also include a grayscale or color composite.