Go to TogaWare.com Home Page. GNU/Linux Desktop Survival Guide
by Graham Williams
Duck Duck Go

PDF Password Unlock

20200309 Documents can be encrypted with a password for privacy and security. A password encrypted pdf document can be decrypted as an unencrypted pdf using:

  $ pdftk d1.pdf input_pw <password> output d1_decrypted.pdf

An alternative is qpdf from the qpdf package which will work on some encryption types that are unknown to pdftk:

  $ qpdf --password=<password> -decrypt d1.pdf d1_decrypted.pdf

Support further development by purchasing the PDF version of the book.
Other online resources include the Data Science Desktop Survival Guide.
Books available on Amazon include Data Mining with Rattle and Essentials of Data Science.
Popular open source software includes rattle and wajig.
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