Is it possible to lock pdf with blank password?












0















I want to know if there is possibility to lock any PDF version 1.7 file with blank password using only command line approach ?



If not, then are there any GUI approaches to do the same.



Conversely, I would also like to know if there is way to supply empty password to unlock the PDF as well? Because I tried various online sites, browser based unlock, qpdf etc. But they don't provide functionality to support blank password as input.



Or unlocking/locking pdf doesn't support blank password?










share|improve this question



























    0















    I want to know if there is possibility to lock any PDF version 1.7 file with blank password using only command line approach ?



    If not, then are there any GUI approaches to do the same.



    Conversely, I would also like to know if there is way to supply empty password to unlock the PDF as well? Because I tried various online sites, browser based unlock, qpdf etc. But they don't provide functionality to support blank password as input.



    Or unlocking/locking pdf doesn't support blank password?










    share|improve this question

























      0












      0








      0








      I want to know if there is possibility to lock any PDF version 1.7 file with blank password using only command line approach ?



      If not, then are there any GUI approaches to do the same.



      Conversely, I would also like to know if there is way to supply empty password to unlock the PDF as well? Because I tried various online sites, browser based unlock, qpdf etc. But they don't provide functionality to support blank password as input.



      Or unlocking/locking pdf doesn't support blank password?










      share|improve this question














      I want to know if there is possibility to lock any PDF version 1.7 file with blank password using only command line approach ?



      If not, then are there any GUI approaches to do the same.



      Conversely, I would also like to know if there is way to supply empty password to unlock the PDF as well? Because I tried various online sites, browser based unlock, qpdf etc. But they don't provide functionality to support blank password as input.



      Or unlocking/locking pdf doesn't support blank password?







      command-line password pdf






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Jan 3 at 14:29









      AdsheadAdshead

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          0















          Is it possible to lock pdf with blank password?




          qpdf and it is available from the software center



          Example:



          qpdf in.pdf out.pdf --decrypt --password=''





          share|improve this answer























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            0















            Is it possible to lock pdf with blank password?




            qpdf and it is available from the software center



            Example:



            qpdf in.pdf out.pdf --decrypt --password=''





            share|improve this answer




























              0















              Is it possible to lock pdf with blank password?




              qpdf and it is available from the software center



              Example:



              qpdf in.pdf out.pdf --decrypt --password=''





              share|improve this answer


























                0












                0








                0








                Is it possible to lock pdf with blank password?




                qpdf and it is available from the software center



                Example:



                qpdf in.pdf out.pdf --decrypt --password=''





                share|improve this answer














                Is it possible to lock pdf with blank password?




                qpdf and it is available from the software center



                Example:



                qpdf in.pdf out.pdf --decrypt --password=''






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Jan 3 at 14:46









                RinzwindRinzwind

                205k28391526




                205k28391526






























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