Adobe PHOTOSHOP ELEMENTS Manual page 58

CHAPTER 2
50
Getting Images into Photoshop Elements
To change the pixel dimensions of an image:
Choose Image > Resize > Image Size.
1
Make sure that Resample Image is selected, and
2
choose an interpolation method. (See "About
interpolation methods" on page 49.)
To maintain the current proportions of pixel
3
width to pixel height, select Constrain Propor-
tions. This option automatically updates the width
as you change the height, and vice versa.
Under Pixel Dimensions, enter values for Width
4
and Height. To enter values as percentages of the
current dimensions, choose Percent as the unit of
measurement.
The new file size for the image appears at the top
of the Image Size dialog box, with the old file size
in parentheses.
5 Click OK to change the pixel dimensions and
resample the image.
For best results in producing a smaller image,
downsample and apply the Unsharp Mask
filter. To produce a larger image, rescan the image at
a higher resolution.
Changing the print dimensions and
resolution of an image
When creating an image for print media, it's useful
to specify image size in terms of the printed
dimensions and the image resolution. These two
measurements, referred to as the document size,
determine the total pixel count and therefore
the file size of the image; document size also
determines the base size at which an image is
placed into another application. You can further
manipulate the scale of the printed image in the
Print Options dialog box; however, changes you
make in the Print Options dialog box affect only
the printed image, not the document size of the
image file. (See "Positioning and scaling images"
on page 262.)
If you turn on resampling for the image, you can
change print dimensions and resolution indepen-
dently (and change the total number of pixels in
the image). If you turn resampling off, you can
change either the dimensions or the resolution—
Photoshop Elements adjusts the other value
automatically to preserve the total pixel count. For
the highest print quality, it's generally best to
change the dimensions and resolution first
without resampling. Then resample only as
necessary.
To change the print dimensions and resolution of
an image:
1 Choose Image > Resize > Image Size.
2 Change the print dimensions, image resolution,
or both:
• To change only the print dimensions or only the
resolution and adjust the total number of pixels in
the image proportionately, make sure that
Resample Image is selected. Then choose an inter-
polation method. (See "About interpolation
methods" on page 49.)
To change the print dimensions and resolution
•
without changing the total number of pixels in the
image, deselect Resample Image.
To maintain the current proportions of image
3
width to image height, select Constrain Propor-
tions. This option automatically updates the width
as you change the height, and vice versa.