Thanks a lot!
I tried It but I think there is something I can't see!
Originally I have the PDF content:
......73 0 obj<</XFA[(preamble)5 0 R(config)6 0 R(template)7 0 R(datasets)8 0
R(localeSet)9 0 R(PDFSecurity)10 0 R(xmpmeta)11 0 R(xfdf)12 0 R(postamble)13 0
R]/Fields[2 0 R]/DA(/Helv 0 Tf 0 g )/DR<</Font<</Helv 1 0 R/MyriadPro-Regular
87 0 R>>>>>>endobj...7 0 obj<</Length
22490/Filter[/FlateDecode]/Type/EmbeddedFile>>stream...endstreamendobj...
There isn't in the PDF any other place that links "7 0" template object than in
"73 0". Then I have the code A): // xfa_element_ind --> "7 0"
PdfReader.killIndirect(xfa_element_ind); PdfStream xfa_stream = new
PdfStream(form_field_property_value); PdfIndirectReference ref =
writer.addToBody(xfa_stream, false).getIndirectReference();
writer.getExtraCatalog().put(PdfName.XFA, ref);
As a result I get that addresses have been recalculated, an I have the
information duplicated (the new one at "1 0" the original one at "11 0"):...1 0
obj <</Length 42104>>stream ....... endstream...75 0 obj<</XFA[(preamble) 9 0
R(config) 10 0 R(template) 11 0 R(datasets) 12 0 R(localeSet) 13 0
R(PDFSecurity) 14 0 R(xmpmeta) 15 0 R(xfdf) 16 0 R(postamble) 17 0 R]/Fields[4
0 R]/DR<</Font<</MyriadPro-Regular 77 0 R/Helv 3 0 R>>>>/DA(/Helv 0 Tf 0 g
)>>endobj...11 0 obj <</Filter[/FlateDecode]/Type/EmbeddedFile/Length
22490>>stream...endstreamendobj...
With next code B): // xfa_element_ind --> "7 0"
PdfReader.killIndirect(xfa_element_ind); PdfStream xfa_stream = new
PdfStream(form_field_property_value); PdfIndirectReference ref =
writer.addToBody(xfa_stream, xfa_element_ind, false).getIndirectReference();
writer.getExtraCatalog().put(PdfName.XFA, ref);
I get the resultant PDF content:...7 0 obj <</Length 42104>>stream .......
endstream...74 0 obj<</XFA[(preamble) 8 0 R(config) 9 0 R(template) 10 0
R(datasets) 11 0 R(localeSet) 12 0 R(PDFSecurity) 13 0 R(xmpmeta) 14 0 R(xfdf)
15 0 R(postamble) 16 0 R]/Fields[3 0 R]/DR<</Font<</MyriadPro-Regular 76 0
R/Helv 2 0 R>>>>/DA(/Helv 0 Tf 0 g )>>endobj...10 0 obj
<</Filter[/FlateDecode]/Type/EmbeddedFile/Length
22490>>stream...endstreamendobj...
This code is the same as A: // xfa_element_ind --> "7 0"
PdfIndirectReference ref = writer.addToBody(xfa_stream,
false).getIndirectReference(); PdfReader.killIndirect(xfa_element_ind);
writer.getExtraCatalog().put(PdfName.XFA, ref); An this
one is like B: // xfa_element_ind --> "7 0" PdfIndirectReference ref =
writer.addToBody(xfa_stream, xfa_element_ind, false).getIndirectReference();
PdfReader.killIndirect(xfa_element_ind);
writer.getExtraCatalog().put(PdfName.XFA, ref);
It's possible to make a direct replacement of stream bytes without changing
references?
Perhaps there is another object that references to "7 0" and 'killIndirect'
takes it into account and makes the recalculation to update it and possible
'xrefs'?
I'm sorry, It's possible that I still haven't understood PDF concepts!
Thanks a lot!
Isma
> Date: Tue, 6 Nov 2007 10:29:59 +0000> From: [EMAIL PROTECTED]> To:
> [email protected]> Subject: Re: [iText-questions]
> Replacing PDF stream content> > You'll have to delete the old object with
> PdfReader.killIndirect(PRIndirectReference).> > Paulo > > > -----Original
> Message-----> > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On > >
> Behalf Of Ismael F> > Sent: Tuesday, November 06, 2007 9:58 AM> > To:
> [email protected]> > Subject: [iText-questions] Replacing
> PDF stream content> > > > Hello everybody,> > > > I need to change, replace a
> whole stream of bytes 'object' > > from a PDF. In this case those bytes
> corresponds to a XFA form.> > > > The original PDF content is like:> >
> %PDF-1.6> > %âãÏÓ> > 1 0 obj <</Type/Metadata/...> > ...> > ...> > 10 0 obj
> <</Filter[/FlateDecode]/Type/EmbeddedFile/Length > > 22459>>stream ...
> endstream> > 11 0 obj .......> > ...> > > > So I use this piece of code:> >
> PdfIndirectReference ref = writer.addToBody(new > >
> PdfStream(form_field_property_value), xfa_element_ind, > >
> false).getIndirectReference();> > writer.getExtraCatalog().put(PdfName.XFA,
> ref);> > > > where "xfa_element_ind" is "10 0", and corresponds to the > >
> bytes adress that I want to replace.> > > > As a result I get this PDF
> content:> > %PDF-1.6> > %âãÏÓ> > 10 0 obj <</Length 42101>>stream ...
> endstream> > 1 0 obj <</Type/Metadata/...> > ...> > ...> > ...> > 10 0 obj
> <</Filter[/FlateDecode]/Type/EmbeddedFile/Length > > 22459>>stream ...
> endstream> > 11 0 obj .......> > ...> > > > As one can see the content has
> not changed/replaced, is > > duplicated and I don't achieve the desired
> result.> > > > How can I make a direct substitution/replacement to the > >
> stream without duplicating content?> > Is It possible?> > How?> > > > I tried
> diferent things but I'm not able to get it!> > > > Thanks a lot!> > > Aviso
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