Update to 8.4.51: automatic APS offline key retrieval

Adobe and the referencing companies got wind of this little script. So they circle through the keys faster than Paris Hilton through her shoes. 😉

Neisklar and 80ka80 wrote some nice scripts to retrieve the keys (thanks so far for the effort). I adopted and modified it and included it in this update.

APS support is still experimental and the key retrieval only works for one major (German) publisher but the keystones are set and I think it’s possible to transfer it to all other companies.

The script update has one disadvantage: If you got an APS pdf and they change the key afterwards you can’t decrypt it (the script always gets the newest key). As you’re using a library system anyway you can just redownload it use the script faster. Anyway that problem will be addressed later.


60 Responses to “Update to 8.4.51: automatic APS offline key retrieval”

  1. 1 APS
    January 22, 2011 at 8:59 am

    Thanks a lot!

  2. 2 Dostojewski
    January 24, 2011 at 11:35 pm

    Hell of a job! You are marvelous!

  3. 3 Tim S
    February 3, 2011 at 11:26 am

    Thanks for the update. One thing I noticed today as I have not used this in a while and rebuilt my system in the process – this will NOT work with Adobe X! If you are getting an error message make sure you are running Adobe Reader 9.X or earlier. I downgraded and it works like a charm once again.

    • February 3, 2011 at 6:25 pm

      It might work with Adobe X if you disable the ‘Protected Mode’ (nevertheless I haven’t tested it). Anyway the problem has been mentioned in the FAQs so if you get problems it’s at least partly your fault. ;9

      Greetings Tetrachroma

  4. 5 abhelam
    February 24, 2011 at 3:55 am

    Where could i find a download’s link for this version ?
    Thank’s for your job.

    • February 25, 2011 at 11:45 am

      Chk. FAQs

      Greetings Tetrachroma

  5. 7 Piotr
    February 28, 2011 at 6:44 am

    May be stupid question but I am completely new here. How to remove FileOpen DRM from pdf file to be able to read an ebook on my device. I need a simple instruction. Thanks in advance. Piotr

    • February 28, 2011 at 2:49 pm

      It has almost the same procedure as the ADEPT ineptpdf scripts from I love cabbages. Search for the instructions.

      Greetings Tetrachroma

  6. 9 Tony
    March 8, 2011 at 2:05 am


    Until few days ago I could decrypt my ebooks with ineptpdf without any problems. Now it says: “Offlinekey cannot be decrypted, aborting (hint: redownload pdf)”. Of course I redownloaded the ebook again but it doesnt work. Interesting thing is that I can decrypt newspapers and magazines, just not books.
    I am using Onleihe. I guess they have changed something, but wonder why I can decrypt newspapers. Do they have different keys?
    Hope someone can help me.

    best regards


    • March 12, 2011 at 10:40 am

      Maybe they changed the scheme again. I got no way to try it out.

      Greetings Tetrachroma

      • 11 sssnej
        May 23, 2011 at 2:04 am

        I do have the same problem with an onleihe-book: “Offlinekey cannot be decrypted, aborting (hint: redownload pdf)”. Any solution to get the key?

  7. 12 Thin-Skinned-Soft-Spine
    March 9, 2011 at 12:09 pm

    Dear Tetrachrome:

    Great work with the ineptpdf to “extend” borrowing period for EBooks borrowed from local library that are locked down with Adobe Livecycle. So easy that even I could get it to work!


    Here’s hoping that you stay one step ahead of their technology.

    Keep up the good work!

  8. 13 Luke
    March 15, 2011 at 8:30 am

    ineptpdf doesn’t work on the ebooks from dawsonera.com. those ebooks are locked with Adobe Livecycle DRM.

    • 14 Luke
      March 15, 2011 at 8:32 am

      can’t find the principalkey

      • 15 Dawson
        March 14, 2012 at 6:40 pm

        Any luck identifying the dawsonera Principal Key?

        • 16 Adarof
          August 21, 2012 at 12:14 am

          Have you managed to get one?

          • 17 Xcel
            January 17, 2013 at 7:27 am

            I also need support for dawsonera. Any updates? Thanks!

  9. 18 Don
    March 16, 2011 at 7:25 am

    I’m getting an error attempting to unlock a FileOpen locked PDF using ineptpdf8.4.51. The error reads “Error: ‘PDFDocument’ object has not attribute ‘decipher_rc4’.



    • 19 Tony D.
      February 29, 2012 at 3:40 pm

      Most of my pdfs can be decrypted, but I’ve found a batch then get the above error as well? Any reason for this? Were you able to get these working?



  10. 20 ifanne
    March 28, 2011 at 12:19 pm

    is it possible to infer the password from a pdf password protected file
    when we have a copy of both the encrypted and the original document.


  11. 21 Jay
    March 31, 2011 at 9:25 am

    I ran into a problem with Firefox 4.0.

    The script could not open the cookie database.

    I downgraded to 3.5 and it works fine now but I think this blew the cookie away.

    How do I get access to the #$%^&*( PDF that was created with File-Open.


    • April 2, 2011 at 9:27 am

      The cookies are in an sql file in your firefox/mozilla profile. you can browse it with an SQL file browser – no biggy.

      I haven’t tested Firefox 4.0 so far so there may be a chance that they changed something.

      Greetings Tetrachroma

  12. 23 Smith
    April 1, 2011 at 5:46 pm

    I cannot download the ineptpdf 8.4.51, could someone so kind as to send one copy to my email? thanks alot! my email is luckcq@gmail.com

  13. 24 Michael Hinze
    June 2, 2011 at 12:25 pm

    Maybe new Copyprotection?

    First of all: Thanks @Tetrachroma for the great work.
    Unfortunately there are some new eBooks which can not be correctly decrypted.
    On german onleihe there are books authored by Pearson Education and published by Markt & Technik. With ineptpdf 8.4.51 they can de decrypted, but all pages except the page with the copyright notices are empty. The fact that the only readable page is the page with the copyright notices and its only on books from Pearson Education brings up the question if this is a new form of copy protection?

    • July 17, 2011 at 3:35 am

      Die Onleihe ndern eventuell mittendrin den Schlssel. Leider habe ich den neuen IDA Pro nicht und mte mich genauer einarbeiten.

      Greetings Tetrachroma

      • 26 Michael Hinze
        July 17, 2011 at 2:33 pm

        Danke für die Antwort. Es hat aber wahrscheinlich nichts mit dem Schlüssel zu tun, der wird von einwandfrei geholt und ließe sich ansonsten auch mit dem bekannten PHP-Script ermitteln. Es ist wohl eher ein Fehler in der Interpretation der PDF-Daten. DeppderNation schreibt dazu auf boerse.bz (http://www.boerse.bz/boerse/dokumente/ebook-pub/453952-howto-adobe-aps-livecycle-drm-entfernen-4.html#post4815366), dass dieser Fehler schon lange behoben ist nur du den Fix noch nicht in dein Script übernommen hast. Könntest du das bei Gelegenheit vielleicht nachholen? Ich bin sicher das eine Menge Leute dir sehr dankbar wären, denn mittlerweile gibts bei Onleihe, zumindest was Computerbücher angeht, fast nur noch diese PDFs die zwar decodiert werden, aber fast nur leere Seiten enthalten. Schon mal vielen Dank im voraus!

        • 27 murks
          August 13, 2011 at 12:03 pm

          Ich möchte mich dieser Bitte anschließen. Das Problem mit den leeren Seiten und der Ausgabe des “Fehler 14” beim Öffnen des Ausgabefiles tritt mittlerweile wirklich bei sehr vielen PDFs auf.
          Wenn die Ursache bekannt ist wäre es toll, wenn wir Hinweise zum Umgehen des Problems bekommen könnten, wenn nicht sogar ein update des scripts das Problem lösen könnte.
          Danke für die bisher schon geleistete Arbeit

          • 28 schnuffi
            September 27, 2011 at 10:50 am

            hilft es vielleicht jemandem zu wissen, dass sich das pdf mit den leeren seiten problemlos in gsview öffnen lässt?

            adobe reader und foxit reader zeigen nichts an, gsview aber sehr wohl.

          • 29 schnuffi
            September 27, 2011 at 11:17 am

            ein file -> convert auf das device pdfwrite erzeugt ein pdf, das dann auch wieder im adobe oder foxit reader tut. und im gegensatz zu dem xpswriter-kram bleibt der text (bis auf wenige stellen) erhalten und selektierbar. lediglich das inhaltsverzeichnis geht dabei flöten.

  14. 30 jason
    June 14, 2011 at 4:51 pm

    Where could i find a download’s link for the new version ?

  15. June 21, 2011 at 5:49 pm

    Dear Tetrachroma.
    A months ago I could decrypt my PDF encrypted by fileopen webpublisher 128 bits protection with ineptpdf without any problems. Now it says: “Cannot find decription key)”.
    Could you please advise me how to solve the issue.

    • July 17, 2011 at 3:37 am

      They have probably changed the encryption scheme.

      Greetings Tetrachroma

  16. 33 DVBMan
    August 5, 2011 at 10:53 am

    Is there any news which solves the Empty-Page-Bug in onleihe pdfs?

  17. 34 D. Fels
    August 12, 2011 at 10:51 pm

    Funktionierte bei mir auf Anhieb, selbst für einen “Laien”, wenn man die Anweisungen exakt befolgt.

  18. 35 BCC
    August 19, 2011 at 5:01 pm

    Hi, i find the version 8.4.51 couldnot open the latest FileOpened file? When could you update your newest version. Very wish

  19. 36 XiRz
    August 31, 2011 at 4:21 am

    Kleiner Hinweis zum Leere-Seiten-Bug:
    Auf dem Kindle sind die fehlerhaften Dateien problemlos darstellbar.

    Vielleicht hilft das weiter.

  20. October 24, 2011 at 10:58 am

    Error: Firefox Cookie database is closed. Close Firefox and try again.
    I’m closing Firefox but nothing happend
    What to do ?

    • 38 Pere Casthor
      November 24, 2011 at 4:16 am

      Hello Tetrachroma.

      I have the same problem : my Firefox Cookie database seems to be closed….
      After having closed FF, deleted all cookies, restarted the computer and executed immediatly your application, still the same…

      An idea to try?

  21. 39 jojo
    December 14, 2011 at 12:58 pm

    thanks yoi !

  22. 40 Thnx
    May 7, 2012 at 11:00 am

    any newer d@wn0s3r4 principal keys ?

  23. 41 AG
    August 3, 2012 at 6:57 am

    Am i blind or what!
    Where can someone find the link! Help me, i am a desprerate man!

  24. 42 Rouis
    August 8, 2012 at 5:15 am

    ok i found the way in but unfortunately i have a new problem! i m getting the folllowing message:

    Error: Decryption was not successfull
    Reason: Your session has expired, please redownload the document.

    Any suggestions would save my burning @$$!!!

    • October 18, 2013 at 6:25 pm

      I am getting the same error as Rouis where is the update to 8.4.51 available. Kindly let me know

  25. 44 Guigui
    January 9, 2013 at 6:39 am

    Thanks a lot, it’s Great !!!!!!!!!!!!!!!!!!!!!
    Is there a way to copy a pdf file (FileOpen) that is only viewable online ??

    Even if it’s not possible, Thanks !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  26. 45 A Library Book Reader
    February 11, 2013 at 3:16 am

    V. 8.4.51 Stopped working – Does anybody has problems too with Library Books (PDF). After month of working without fail it stopped working for Books (PDF) about 2 Weeks ago – Newspapers (PDF) still work. The Error message is Offline key can not be encrypted. And i also see in the network monitor that it connects to edc.bibliothek-digital.de. Did they maybe change something on the encryption scheme again ?

  27. 46 Regular Reader
    March 7, 2013 at 3:38 am

    I’m having the same problem like “A Library Book Reader”. Also with big german publishers.

    An Update would be greatly appreciated.

    Thanks a lot for your work so far.

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