Mercurial > hgrepos > Python2 > PyMuPDF

annotate tests/test_crypting.py @ 46:7ee69f120f19 default tip

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>>>>> tag v1.26.5+1 for changeset b74429b0f5c4
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 17:17:30 +0200
parents 1d09e1dec1d9
children
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1d09e1dec1d9 ADD: PyMuPDF v1.26.4: the original sdist.
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1 """
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2 Check PDF encryption:
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3 * make a PDF with owber and user passwords
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4 * open and decrypt as owner or user
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5 """
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6 import pymupdf
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7
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8
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9 def test_encryption():
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10 text = "some secret information" # keep this data secret
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11 perm = int(
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12 pymupdf.PDF_PERM_ACCESSIBILITY # always use this
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13 | pymupdf.PDF_PERM_PRINT # permit printing
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14 | pymupdf.PDF_PERM_COPY # permit copying
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15 | pymupdf.PDF_PERM_ANNOTATE # permit annotations
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16 )
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17 owner_pass = "owner" # owner password
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18 user_pass = "user" # user password
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19 encrypt_meth = pymupdf.PDF_ENCRYPT_AES_256 # strongest algorithm
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20 doc = pymupdf.open() # empty pdf
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21 page = doc.new_page() # empty page
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22 page.insert_text((50, 72), text) # insert the data
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23 tobytes = doc.tobytes(
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24 encryption=encrypt_meth, # set the encryption method
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25 owner_pw=owner_pass, # set the owner password
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26 user_pw=user_pass, # set the user password
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27 permissions=perm, # set permissions
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28 )
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29 doc.close()
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30 doc = pymupdf.open("pdf", tobytes)
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31 assert doc.needs_pass
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32 assert doc.is_encrypted
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33 rc = doc.authenticate("owner")
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34 assert rc == 4
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35 assert not doc.is_encrypted
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36 doc.close()
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37 doc = pymupdf.open("pdf", tobytes)
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38 rc = doc.authenticate("user")
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39 assert rc == 2