5.5

Table Of Contents
65Motion User Guide
When importing a PDF file, its size is relative to the original page size of the file. As a
result, even small graphics can have a large frame size, with empty space surrounding the
graphic. When exporting a graphic as a PDF file for use in Motion, you may want to scale
the graphic to fit the page dimensions, or reduce the page size in the source application’s
page preferences to fit the graphic’s dimensions.
Fixing the resolution of a PDF object
Although PDF files have unlimited resolution, large PDF objects can consume a lot of
video memory, which can hinder performance in Motion. To avoid this problem, limit the
resolution of each PDF image to save video memory. By using fixed-resolution parameters,
the files are rendered once, ensuring better performance.
The fixed-resolution parameters for PDF objects are adjusted in the Media Inspector. Select
the PDF source media in the Media list to activate the Media Inspector. Adjust the following
controls to modify the PDF’s fixed-resolution parameters:
Pixel Aspect Ratio: A pop-up menu to assign a nonsquare pixel aspect ratio to the file.
In most cases, the “From file” menu option is the best choice because it assigns the
PDF source file’s native aspect ratio. Choose a different menu item only if you want to
override that native setting.
Fixed Resolution: A checkbox that, when selected, fixes the resolution of PDF source
media to the size specified in the Fixed Width and Fixed Height sliders.
Fixed Width: A slider to set the maximum horizontal resolution to which a PDF object
can be smoothly scaled.
Fixed Height: A slider to set the maximum vertical resolution to which a PDF object can
be smoothly scaled.
Use Background Color: A checkbox that, when selected, substitutes a custom
background color for transparent portions of the PDF. Choose the background color in
Background Color controls (described below).
Background Color: Color controls (available when Use Background Color is selected) to
set the background color for transparent portions of the PDF.
Crop: Sliders (Left, Right, Bottom, and Top) to crop the edges of the PDF image, if
necessary. These controls crop the PDF source media (and all layers linked to that
source media). To crop an individual layer, use the Crop parameters in the layers
Properties Inspector.
Mixed content in PDF files
Although PDF files can contain a mix of PostScript-based art, PostScript text, and
bitmapped graphics, each format has different scaling properties. PostScript-based art
and text scale smoothly, but bitmapped graphics embedded in a PDF file are subject to the
same scaling issues as other bitmapped graphics formats. As a result, bitmapped graphics
can soften if scaled larger than their original size.
Note: Form objects, buttons, and JavaScript objects that are present in an imported PDF
file do not appear in Motion.