It was a bug, the owner key was set to blank. It's fixed in the CVS. Paulo
> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On > Behalf Of Humbold, Stefan > Sent: Tuesday, July 18, 2006 7:01 AM > To: 'Post all your questions about iText here' > Subject: Re: [iText-questions] Reading encrypted > PDF-fileswithoutuser-pa ssword > > yes, of course. I post the pdf-file, user-password is "user" > (but you can > also take the pdf-file from the tutorial ... > http://itextdocs.lowagie.com/tutorial/general/HelloEncrypted.pdf) > I also post you my simple small demo-program to decrypt the > pdf-file without > password. > > Stefan > > > -----Ursprüngliche Nachricht----- > Von: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Im > Auftrag von Paulo > Soares > Gesendet: Montag, 17. Juli 2006 16:46 > An: Post all your questions about iText here > Betreff: Re: [iText-questions] Reading encrypted PDF-files > withoutuser-pa > ssword > > > If Acrobat asks for a password, then iText will also need > one. Can you post > the PDF? > > Paulo > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On > > Behalf Of Humbold, Stefan > > Sent: Monday, July 17, 2006 2:39 PM > > To: 'Post all your questions about iText here' > > Subject: Re: [iText-questions] Reading encrypted PDF-files > > withoutuser-pa ssword > > > > just now i recognized, that i can only decrypt the > encrypted pdf-file > > without password, if i use PdfWriter.STRENGTH128BITS during > > encryption. > > --> PdfReader reader = new PdfReader(pdfEncrypted.pdf); > > > > If i use PdfWriter.STRENGTH40BITS, i need the user-password > > --> PdfReader reader = new PdfReader(pdfEncrypted.pdf, > > "userPW".getBytes()); > > > > But i hope, it is not the solution, just to set the > > encryption to 40 bit... > > > > > > -----Ursprüngliche Nachricht----- > > Von: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] Im > > Auftrag von Paulo > > Soares > > Gesendet: Montag, 17. Juli 2006 13:53 > > An: Post all your questions about iText here > > Betreff: Re: [iText-questions] Reading encrypted PDF-files without > > user-password > > > > > > If you have a user password it will certainly need the > > password to open it. > > What's the behaviour in Acrobat when opening the doc? > > > > Paulo > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED] On > > > Behalf Of stefan humbold > > > Sent: Monday, July 17, 2006 12:02 PM > > > To: [email protected] > > > Subject: [iText-questions] Reading encrypted PDF-files > > > without user-password > > > > > > Hello iTexter, > > > > > > i want to make encrypted PDF-files with iText (iText v1.4.2, JDK > > > 1.5.0): > > > > > > ... > > > PdfWriter writer = PdfWriter.getInstance(document, new > > > FileOutputStream(pdfEncrypted.pdf)); > > > writer.setEncryption(PdfWriter.STRENGTH128BITS, > > > "userPW", "ownerPW", permissions); > > > ... > > > > > > My user password in this example is "userPW". > > > > > > I thougt, that this encryption is secure and that i > > > need the user-password to read the encrypted pdf-File. > > > > > > But now i can open the generated file with iText > > > without user password.... the user password is simple > > > null! > > > > > > ... > > > PdfReader reader = new PdfReader(pdfEncrypted.pdf); > > > PdfEncryptor.encrypt(reader, new > > FileOutputStream(pdfDecrypted.pdf), > > > null, null, PdfWriter.AllowPrinting, false); > > > ... > > > > > > Now i can save the decrypted file without encryption. > > > > > > Even if i take the encrypted pdf-file from the iText -Tutorial, i > > > don't need a password to open the file with iText... my > password is > > > again null. > > > (http://itextdocs.lowagie.com/tutorial/general/HelloEncrypted.pdf) > > > I don't know, if this is a bug or a feature? > > > > > > But if i take the encrypted pdf-file from itextsharp > > > (http://itextsharp.sourceforge.net/examples/Chap0110.pdf) > > > , i get --> java.io.IOException: Bad user password > > > This pdf-file seems to be encrypted correct. > > > > > > Seems, that the PDF-Files encrypted by java-iText can always be > > > deyrypted by java-iText. Independent of the giffen > password during > > > encryption. Did i make any mistake(s) during encryption? > > > > > > Hope for help! > > > Humbi Aviso Legal: Esta mensagem é destinada exclusivamente ao destinatário. Pode conter informação confidencial ou legalmente protegida. A incorrecta transmissão desta mensagem não significa a perca de confidencialidade. Se esta mensagem for recebida por engano, por favor envie-a de volta para o remetente e apague-a do seu sistema de imediato. É proibido a qualquer pessoa que não o destinatário de usar, revelar ou distribuir qualquer parte desta mensagem. Disclaimer: This message is destined exclusively to the intended receiver. It may contain confidential or legally protected information. The incorrect transmission of this message does not mean the loss of its confidentiality. If this message is received by mistake, please send it back to the sender and delete it from your system immediately. 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