문제
I've currently run into the need to find which pdfs within a directory are "Secured Documents". All of the pdfs should be unsecured, and convertible via xpdf, however, this is not the case. How could I scan through all the pdfs in a directory to find out whether or not they are secured?
해결책
pyPdf supports decrypting PDFs. Its PdfFileReader class has an isEncrypted attribute.
import pyPdf
if pyPdf.PdfFileReader(open("file_name.pdf", 'rb')).isEncrypted:
print "Rut ro, it's encrypted."
# skip file? Write to a log?
else:
print "We're clear."
# Do stuff with the file.
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