Hi, thanks for the update. We have Adobe 8 Standard but I cannot find that 'Preflight' option apparently.
Do I have wrong version ? Will the 'Preflight' option give me a list of all things wrong in a PDF document ? Or are there any other tools available that do the same job ? Thx, HT. On Wed, Dec 31, 2008 at 2:28 PM, Leonard Rosenthol <lrose...@adobe.com>wrote: > It's one of those tricky problems, especially when your software is > installed on >90% of all computers in the world... > > How do you tell someone that they have a problem BUT then not offer them > any way to fix it ESPECIALLY when it's most likely not their fault in the > first place (it's just some PDF they downloaded from a web site)? > > We've introduced this sort of thing, a bit at a time, into Acrobat via the > Preflight functionality. So that a user that actually WANTS TO KNOW can get > information about the quality (or lack thereof) of a given PDF... > > Leonard > > -----Original Message----- > From: Michael Klink [mailto:m...@wir-sind-cool.org] > Sent: Tuesday, December 30, 2008 3:28 PM > To: itext-questions@lists.sourceforge.net > Subject: [iText-questions] (no subject) > > Hi! > > I extracted that first signed revision now. Unfortunately the Reader here > once more is quite lax when confronted with broken PDF documents. IMHO it > should at least tell the user that the PDF is broken... > > Regards, Mikel. > > -----Ursprüngliche Nachricht----- > Von: Michael Klink [mailto:m...@wir-sind-cool.org] > Gesendet: Dienstag, 30. Dezember 2008 20:49 > An: itext-questions@lists.sourceforge.net > Betreff: Re: [iText-questions] itext invalidates first signature. Why ? > > Hi HT, > > I looked at your PDF; Acrobat and the Reader are right, the signature byte > range _is_ invalid. It is invalid in the sense that the part of the PDF file > from the beginning of the file until the end of the last byte range is not a > proper PDF file and therefore not a valid document revision to be signed. > > Look at it, you'll find that it's actually the signature dictionary (5 0 > obj) itself which is located at an invalid position betwenn the trailer > dictionary and the startxref making this revision invalid. > > >>>>>>>>>>>>>>> > trailer > << > /Root 19 0 R > /ID [<9d9bc8f4766bc3c0cabfe0a7409eb782><9d9bc8f4766bc3c0cabfe0a7409eb782> ] > /Info 20 0 R /Size 22 > >> > 5 0 obj > << > [...] > >> > endobj > startxref > 000000003615 > %%EOF > > 31 0 obj > <<<<<<<<<<<<<<< > > Thus you simply have to repair the software that creates the first > signature. > > Best regards, Michael. > > -----Ursprüngliche Nachricht----- > Von: HidekiT [mailto:hideki.tih...@gmail.com] > Gesendet: Dienstag, 30. Dezember 2008 15:33 > An: itext-questions@lists.sourceforge.net > Betreff: Re: [iText-questions] itext invalidates first signature. Why ? > > > Hi All, > > if someone could give us some advice we would be very gratefull. > > We really don't see the solution to this problem. > > If someone could look at the pdf attached and try to find out what goes > wrong ? > > We really checked all code many times but now we are desparate. > > (Open the doc and click on the grey signature to see the errormessage). The > byteranges are OK so it must be something else... > > Thanks so much already ... > > HT > > > > HidekiT wrote: > > > > Hi, > > > > we get signed PDF documents made with 3rd party software we need to add > > additional signature with iText. > > > > Problem is that the 1st signature gets invalid when 2nd is added. The > > error is: > > > > Error during signature verification. > > Unexpected byte range values defining scope of signed data. > > Details: The signature byte range is invalid > > > > We don't understand why this happens ? When we open the original document > > (with only 1st signature) no error is given so why is this invalidated > > with iText when new signature is added ? > > > > I attach the file with the 2 signatures (only 10 kb) so if someone can > > tell us what the problem is we might solve it. > > > > Any help much appreciated. > > > > http://www.nabble.com/file/p21191679/Example_invalid-first-signature.pdf > > Example_invalid-first-signature.pdf > > http://www.nabble.com/file/p21217894/Example_invalid-first-signature.pdf > Example_invalid-first-signature.pdf > > -- > Psssst! Schon vom neuen GMX MultiMessenger gehört? Der kann`s mit allen: > http://www.gmx.net/de/go/multimessenger > > > ------------------------------------------------------------------------------ > _______________________________________________ > iText-questions mailing list > iText-questions@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/itext-questions > > Buy the iText book: http://www.1t3xt.com/docs/book.php >
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