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.
Thanks a lot!
Hell of a job! You are marvelous!
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.
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
Hi,
Where could i find a download’s link for this version ?
Thank’s for your job.
Chk. FAQs
Greetings Tetrachroma
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
It has almost the same procedure as the ADEPT ineptpdf scripts from I love cabbages. Search for the instructions.
Greetings Tetrachroma
Hi,
Until few days ago I could decrypt my ebooks with ineptpdf 8.4.5.1 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
Tony
Maybe they changed the scheme again. I got no way to try it out.
Greetings Tetrachroma
I do have the same problem with an onleihe-book: “Offlinekey cannot be decrypted, aborting (hint: redownload pdf)”. Any solution to get the key?
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!
Thanks!
Here’s hoping that you stay one step ahead of their technology.
Keep up the good work!
ineptpdf 8.4.5.1 doesn’t work on the ebooks from dawsonera.com. those ebooks are locked with Adobe Livecycle DRM.
can’t find the principalkey
Any luck identifying the dawsonera Principal Key?
Have you managed to get one?
I also need support for dawsonera. Any updates? Thanks!
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′.
Thanks,
Don
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?
Thanks,
Tony
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.
thanks
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.
Jay
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
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
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?
Die Onleihe ndern eventuell mittendrin den Schlssel. Leider habe ich den neuen IDA Pro nicht und mte mich genauer einarbeiten.
Greetings Tetrachroma
Danke für die Antwort. Es hat aber wahrscheinlich nichts mit dem Schlüssel zu tun, der wird von 8.4.5.1 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!
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
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.
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.
Hi,
Where could i find a download’s link for the new version ?
Thank’s
Dear Tetrachroma.
A months ago I could decrypt my PDF encrypted by fileopen webpublisher 128 bits protection with ineptpdf 8.4.5.1 without any problems. Now it says: “Cannot find decription key)”.
Could you please advise me how to solve the issue.
LMA
They have probably changed the encryption scheme.
Greetings Tetrachroma
Is there any news which solves the Empty-Page-Bug in onleihe pdfs?
Funktionierte bei mir auf Anhieb, selbst für einen “Laien”, wenn man die Anweisungen exakt befolgt.
Hi, i find the version 8.4.51 couldnot open the latest FileOpened file? When could you update your newest version. Very wish
Kleiner Hinweis zum Leere-Seiten-Bug:
Auf dem Kindle sind die fehlerhaften Dateien problemlos darstellbar.
Vielleicht hilft das weiter.
Error: Firefox Cookie database is closed. Close Firefox and try again.
I’m closing Firefox but nothing happend
What to do ?
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?
thanks yoi !
any newer d@wn0s3r4 principal keys ?
Am i blind or what!
Where can someone find the link! Help me, i am a desprerate man!
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 @$$!!!
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 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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 ?
Hello,
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.
Have you ever thought about writing an ebook or guest authoring on other blogs?
I have a blog based on the same information you discuss and would love to have you share some stories/information.
I know my subscribers would enjoy your work.
If you are even remotely interested, feel free
to shoot me an email.
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Settings
RetVal=0&Error=Bad Request.
First time I’ve run into this. It created a failed decrypted copy once, now the debug output is all I get. The published of the document says you can only download the pdf twice. Do you supposed that goes for the script as well?