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Struts & Hibernate
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| | | Subject: Replacing PDF stream content | Subject: Replacing PDF stream content 2007-11-06 - By Ismael F
Back
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 (See http://PDF-1.ora-code.com).6%????1 0 obj <</Type/Metadata/.........10 0 obj <</Filter[/FlateDecode]
/Type/EmbeddedFile/Length 22459>>stream ... endstream11 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 (See http://PDF-1.ora-code.com).6%????10 0 obj <</Length 42101>>stream ... endstream1 0 obj <</Type
/Metadata/............10 0 obj <</Filter[/FlateDecode]/Type/EmbeddedFile/Length
22459>>stream ... endstream11 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!
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Express yourself instantly with MSN Messenger! Download today it's FREE!
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<html>
<head>
<style>
.hmmessage P
{
margin:0px;
padding:0px
}
body.hmmessage
{
FONT-SIZE: 10pt;
FONT-FAMILY:Tahoma
}
</style>
</head>
<body class='hmmessage'>
Hello everybody,<BR>
<BR>
I need to change, replace a whole stream of bytes 'object' from a PDF. In this
case those bytes corresponds to a XFA form.<BR>
<BR>The original PDF content is like:<BR>
%PDF-1 (See http://PDF-1.ora-code.com).6<BR>%????<BR>1 0 obj <</Type/Metadata/...<BR>...<BR>...<BR>
<STRONG>10 0</STRONG> obj <</Filter[/FlateDecode]/Type/EmbeddedFile/Length
22459>><STRONG>stream ... endstream</STRONG><BR>11 0 obj .......<BR>
...<BR>
<BR>
So I use this piece of code:<BR>
PdfIndirectReference ref = writer.addToBody(new 
;PdfStream(form_field_property_value), xfa_element_ind, false)
.getIndirectReference();<BR> writer.getExtraCatalog().put
(PdfName.XFA, ref);<BR>
<BR>
where "xfa_element_ind" is "10 0", and corresponds to the bytes adress that I
want to replace.<BR>
<BR>
As a result I get this PDF content:<BR>
%PDF-1 (See http://PDF-1.ora-code.com).6<BR>%????<BR><STRONG>10 0</STRONG> obj <</Length 42101>>
<STRONG>stream ... endstream</STRONG><BR>1 0 obj <</Type/Metadata/...<BR>.
..<BR>...<BR>...<BR><STRONG>10 0</STRONG> obj <</Filter[/FlateDecode]/Type
/EmbeddedFile/Length 22459>><STRONG>stream ... endstream<BR></STRONG>11 0
obj .......<BR>
...<BR>
<BR>
As one can see the content has not changed/replaced, is duplicated and I don't
achieve the desired result.<BR>
<BR>
How can I make a direct substitution/replacement to the stream without
duplicating content?<BR>
Is It possible?<BR>
How?<BR>
<BR>
I tried diferent things but I'm not able to get it!<BR>
<BR>
Thanks a lot!<BR><br /><hr />Express yourself instantly with MSN Messenger! <a
href='http://clk.atdmt.com/AVE/go/onm00200471ave/direct/01/' target='_new'>MSN
Messenger</a></body>
</html>
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