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I need to remove some restrictions from a .pdf document:

enter image description here

I can't zoom or use any other buttons. The toolbar just isn't available. I never saw a .pdf file like this one.

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Point us to a PDF link if you want a remotely useful answer. –  Mike Fitzpatrick Nov 14 '10 at 11:53
    
If the PDF is protected, there's very little you can do to unprotect it. –  user3463 Nov 14 '10 at 21:02

1 Answer 1

You have two options:

  • with ghostscript:

    gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=%stdout% -c .setpdfwrite -f locked.pdf > unlocked.pdf
    
  • with pdf2ps and ps2pdf (slower):

    pdf2ps locked.pdf - | ps2pdf - unlocked.pdf
    

    If the unlocked PDF contains error, try to decompose the commands (ps2pdf have sometimes problems with a streamed input):

    pdf2ps locked.pdf unlocked.ps
    ps2pdf unlocked.ps unlocked.pdf
    
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