I just downloaded advanced pdf tools command line 3.0.
I ran the test-encryption.bat.
As expected, it created a pdf test-encryption.pdf
But the PDF did not require an open password.
Does the trial version correctly work to apply an open password?
Customer
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https://www.verypdf.com/app/encrypt-pdf/try-and-buy.html#buyencli
Thanks for your message, yes, the trial version does able to apply an open password to a PDF file.
You may run following command lines to apply an open password or only owner password to a PDF file,
pdftools.exe -S openpwd=123 -S ownerpwd=456 -S keylen=2 -S permission=129 -i test.pdf -o _test-encryption-with-open-password.pdf
pdftools.exe -S ownerpwd=456 -S keylen=2 -S permission=129 -i test.pdf -o _test-encryption-without-open-password.pdf
If you couldn't get it work, please feel free to send to us your sample PDF file for test purpose, after we check your sample PDF file, we will figure out a solution to you asap.