Hi:
PDF is an Adobe proprietary format. I'm not sure whether you can alter that information with a SAS program without corrupting the PDF file. I know how to set those attributes as you create the file.
Maybe you can use an Adobe product to change those document properties?
cynthia
ods pdf file='c:\temp\make_info.pdf'
title='My Title' author='Ima Writer'
keywords='Students, School, Demographics'
subject='My Report';
proc print data=sashelp.class;
run;
ods pdf close;