oracle forms developer

hello
i wuold like to ask these questions:
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1) how to print an existing file that i know it's name and path directly from the form
to the printer with out opening the file ?
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2) how to pass parameters from the form to the microsoft word & excel to choose the direction of typing some text in it
and inserting the numbers of pages ?
and to encod it with the "windows defaul encoding"
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3) how to create and write in an acrobat file ".pdf"
from the form and choosing the direction of the writing?
-------------thank you