Encryption and Decryption of PDFs
Encrypt
Add a password to a PDF (encrypt it):
from PyPDF2 import PdfReader, PdfWriter
reader = PdfReader("example.pdf")
writer = PdfWriter()
# Add all pages to the writer
for page in reader.pages:
writer.add_page(page)
# Add a password to the new PDF
writer.encrypt("my-secret-password")
# Save the new PDF to a file
with open("encrypted-pdf.pdf", "wb") as f:
writer.write(f)
Decrypt
Remove the password from a PDF (decrypt it):
from PyPDF2 import PdfReader, PdfWriter
reader = PdfReader("encrypted-pdf.pdf")
writer = PdfWriter()
if reader.is_encrypted:
reader.decrypt("my-secret-password")
# Add all pages to the writer
for page in reader.pages:
writer.add_page(page)
# Save the new PDF to a file
with open("decrypted-pdf.pdf", "wb") as f:
writer.write(f)