Command parameters
Command line usage:

pdfdecrypt <-i PDF File> [-o Output] [Options]

-i <string> Specify PDF files or directory which contains PDF files.
-o <string> Specify output directory. e.g. C:\output\,
If no set. default save in the same folder as input.
-d Include sub directory.
-# Keep original subfolder.
-g <string> If no set. default save log in the same folder as program.
-l off , Turn off to save log. default is turn on
-l "c:\log.log" Specify log file.
-w Set overwrite if output file is exist.
-u <string> User or Owner password.
-t <string> Set 'title' to pdf file
-j <string> Set 'subject' to pdf file
-a <string> Set 'author' to pdf file
-k <string> Set 'keywords' to pdf file
-c <string> Set 'creator' to pdf file
-p <string> Set 'producer' to pdf file
-n <int> Set pdf annotations 1=open or 0=close, default 1.
-l <int> Set pdf articles 1=open or 0=close, default 1.
-b <int> Set pdf bookmarks 1=open or 0=close, default 1.
-e <int> Set pdf interactive 1=open or 0=close, default 1.
-m <int> Set pdf metadata 1=open or 0=close, default 1.
-v <int> Set pdf viewer 1=open or 0=close, default 1.
-y <int> Set pdf Document Structure Hierarchy 1=open or 0=close, default 1.
-r <string> Register.
-h Help
-? Help.
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Example:
  pdfdecrypt -i "c:\input.pdf" Decrypt pdf file "c:\input.pdf"
  pdfdecrypt -i "c:\input.pdf" -o "c:\output\" -w Decrypt pdf file "c:\input.pdf" save to folder "c:\output\" and overwrite if output file is exist.
  pdfdecrypt -i "c:\input.pdf" -i "c:\input\" -o "c:\output\" Decrypt pdf file "c:\input.pdf" and folder "c:\intput\" which contains pdf files save to folder "c:\output"
  pdfdecrypt -i "c:\input.pdf" -o "c:\output\" -u "pass" Must set password if pdf has user password and owner password.
  pdfdecrypt -i "c:\input.pdf" -o "c:\output\" -a "author" -p "producer" Set pdf information author and producer for output pdf file.
  pdfdecrypt -i "c:\input.pdf" -o "c:\output\" -b 0 -g "d:\log.log" Set output pdf bookmarks close and set log "d:\log.log".