Adobe photoshop elements 2 Manual Do Utilizador

Página de 264
CHAPTER 13
228
Saving Images
2
Select the Layers as Frames option, specify a 
filename and location, and click Save.
When the Save for Web dialog box appears, set 
optimization options as described in “Optimizing 
Web images” on page 210.
Saving in JPEG format 
Joint Photographic Experts Group (JPEG) format 
is commonly used to save photographs and other 
continuous-tone images. JPEG format retains all 
color information in an image but compresses file 
size by selectively discarding data. You can choose 
what level of compression you want. A higher level 
of compression results in lower image quality and 
a smaller file size; a lower level of compression 
results in better image quality and a larger file size.
JPEG is one of the standard formats for displaying 
images over the World Wide Web and other online 
services. For information on when to use JPEG 
format to optimize images, see “Choosing a file 
format  for the Web” on page 207.
To save a file in JPEG format:
1
Choose File > Save As, and choose JPEG from 
the format list.
Note: You cannot save Indexed Color and Bitmap 
mode images in JPEG format.
2
Specify a filename and location, select saving 
options (as described in “Saving images” on 
page 225),
 and click Save, which opens the JPEG 
Options dialog box.
3
If the image contains transparency, select a 
Matte color to simulate the appearance of 
background transparency. (See “Making trans-
parent and matted images” on page 214.)
4
Do one of the following to specify the 
image quality:
Choose an option from the Quality menu.
Drag the Quality pop-up slider.
Enter a value between 1 and 12 in the Quality 
text box.
5
Select a format option:
Baseline (“Standard”) to use a format that is 
recognizable to most Web browsers. 
Baseline Optimized to optimize the color 
quality of the image and produce a slightly 
smaller file size. This option is not supported by 
all Web browsers. 
Progressive to create an image that displays 
gradually as it is downloaded to a Web 
browser—in a series of scans (you specify how 
many) showing increasingly detailed versions of 
the entire image. Progressive JPEG images files 
are slightly larger in size, require more RAM for 
viewing, and are not supported by all applica-
tions and Web browsers.
6
To view the estimated download time of the 
image, select a modem speed from the Size pop-up 
menu. (The Size preview is only available when 
Preview is selected.)
Note: If you find that a Java application cannot read 
your JPEG file (in any color mode), try saving the file 
without a thumbnail preview.
7
Click OK.