ScanSoft PDF CONVERTER STANDARD 3-HELP Online Help Manual page 21

Resolution for Graphic Elements
Choose a maximum permitted resolution value, from 72 to 300 dots per inch
(dpi). If the PDF has images with a lower value than you specify, the resolution in
the target application will be the same as in the PDF. If the PDF file has images
with a higher value than you specify, they will be reduced to the given value.
When the PDF has large images, or it has many image-only pages and you
requested that these be transferred as image, the resolution setting strongly
influences the size of the resulting file. A lower resolution is suitable for web
display, but higher resolution is recommended for printing.
See: Converting Documents.
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