Summary
Impressario supports PDFs that are created in RGB colospace,
not CMYK. When CMYK documents are displayed by Impressario, the colors are not
identical to the original. However, if you have PDFs that are already generated
as CMYK, you can convert them to RGB so that they can be displayed by
Impressario.
Solution
The following solution was recommended by an Impressario user:
1. Open the original PDF file (the CMYK version) in Acrobat.
2. Save it as
an EPS file.
3. Then use Acrobat Distiller to create a new PDF in RGB color
space.