Classroom in a book

12
Expand the Motion effect in the Effect Controls panel.
13
Expand the Scale parameter, and adjust it larger or smaller. Watch the effect it 
has on the image. You can manually scale the image to any size you like. In a 
later lesson, we’ll look at keyframing this parameter to create animation.
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 Note:
If you want 
all your images to be 
automatically scaled 
to the project frame 
size, you can set that 
as a preference in the 
General category in 
Preferences by selecting 
“Default scale to frame 
size.” You must set 
the option before you 
import the images for it 
to take effect.

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ADOBE PREMIERE PRO CS5 CLASSROOM IN A BOOK
37
Image tips
Here are a few tips for importing images:
t
You can import images up to 16 megapixels in size (4096x4096).
t
If you don’t plan to zoom or pan, try to create files with a frame size at least as 
large as the frame size of the project. Otherwise, you have to scale up the image, 
and it will lose some of its sharpness. Importing overly large files uses more 
memory and can slow down your project.
t
If you plan to zoom or pan, create images such that the zoomed or panned area 
has a frame size at least as large as the frame size of the project.
Square vs. rectangular pixels
TV sets display rectangular pixels—slightly vertical rectangles (.9 aspect ratio) for 
NTSC and slightly horizontal rectangles for PAL. By contrast, computer monitors 
use square pixels. Images created in graphics software typically are square. Adobe 
Premiere Pro adjusts them to display properly by squashing and interpolating the 
square pixels to keep the images’ original aspect ratios and to display them properly 
on TV sets. So when you create graphics or images with square pixels, create them 
with your TV standard in mind: 720x534 for NTSC (that frame size will become 
720x480 after Premiere Pro squashes the square pixels into rectangles) and 768x576 
for PAL.