Adobe Photoshop Help
Saving and Exporting Images
Tagged-Image File Format (TIFF) is used to exchange ﬁles between applications and
computer platforms. TIFF is a ﬂexible bitmap image format supported by virtually all paint,
image-editing, and page-layout applications. Also, virtually all desktop scanners can
produce TIFF images.
TIFF format supports CMYK, RGB, Lab, indexed-color, and grayscale images with alpha
channels and Bitmap-mode images without alpha channels. Photoshop can save layers in
a TIFF ﬁle; however, if you open the ﬁle in another application, only the ﬂattened image is
visible. Photoshop can also save annotations, transparency, and multiresolution pyramid
data in TIFF format.
Adding ﬁle information (Photoshop)
File information—also called metadata—is increasingly important in all types of
publishing. Adobe Photoshop supports the information standard developed by the
Newspaper Association of America (NAA) and the International Press Telecommunications
Council (IPTC) to identify transmitted text and images. This standard includes entries for
captions, keywords, categories, credits, and origins.
In Windows, you can add ﬁle information to ﬁles saved in Photoshop, TIFF, JPEG, EPS, and
PDF formats. In Mac OS, you can add ﬁle information to ﬁles in any format. The information
you add is embedded in the ﬁle using XMP (eXtensible Metadata Platform). XMP provides
Adobe applications and workﬂow partners with a common XML framework that
standardizes the creation, processing, and interchange of document metadata across
To enter information about a ﬁle:
1 Choose File > File Info.
2 For Section, select an option for the information you want to enter:
General Lets you enter title, author, caption, copyright information, and the owner’s URL.
To display a copyright symbol in the title bar of the image window, choose Copyrighted
Work in the Copyright Status menu. If Photoshop detects a Digimarc watermark in the
image, the Copyright Notice section is automatically updated.
Note: To print the caption under an Adobe Photoshop image, choose File > Print with
Preview, and select Caption. Then print as usual. (See “
etting output options
for more information.)
Keywords Provides a way for some image browsers to categorize and search for an
image. To add an entry to the keywords list, type in the text box, and click Add. To replace
a keyword, select the word in the list, type its replacement, and click Replace. To delete a
keyword, select the word, and click Delete.
Categories Lets you enter a three-letter Associated Press code. (Where available, the
Associated Press regional registry maintains a list of categories.) To include the image in
supplemental categories, type the code, and click Add. To replace a category, select the
code, type its replacement, and click Replace. To delete a category, select the code, and