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Fun with transformation matrixes. Yay.
The problem is that rotation occurs around the origin, 0, 0 (the lower
left corner of a PDF page). So if you're rotating the barcode 90
clockwise, it's being drawn off the page, below it in the +x, -y
quadrant.
To remedy this, I suggest you use AffineTrans
Hi Emmanuel,
thanks for the detailed answer !
So 'dynamic' is more or less the short version of 'dynamically calculated
representation depending on the current data'.
Anyway, impleneting XFA signature brings a fairly portion of work. But if there
are 'magic' numbers involved, I wouldn't be too
You can find a definition of dynamic form in the XFA spec:
Here is an extract:
"Dynamic forms change in appearance in response to changes in the data. They
can do this in several ways.
Forms may be designed to change structure to accommodate changes in the
structure of the data
supplied to the fo
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Thanks
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Easy:
Official examples are on the itextpdf website, not any of the many other
aggregators
Change from Lowagie to itextpdf happened with a licence and version change
to v5
All stuff before that is not supported any more on the lists. Might work,
might not.
john renfrew
Right Way Up
-O
Hmmm,
sorry, I'm not that deep in PDF details ... a dynamic PDF is a PDF where
someone filled some form with values ... isn't that the usual case for
versioned signatures ? A first version signed with empty fields, a second
version with new values appended, leaving the old signature intact ? An
On 13/07/2011 15:44, bobsyouruncle wrote:
> Some examples use lowagie while others use
> iText. What is the difference? Is one older or better than the other?
Those who use "import com.lowagie.text..." are no longer supported.
Those who use "import com.itextpdf.text..." are the ones you should use.
Hello Andreas!
Yes, I am a little bit desperate about XFA signatures! ;-)
My need is to make a *standard PDF Signature over a dynamic PDF file* which
contains an empty XFA field.
Typically, for tests purpose, I have this kind of field (totally created
with Acrobat PRO meaning a default signature
Hi programmers,
1)I am using itextsharp to write a pdf. I am reading a pdf with text
contents and I am writing a header and footer(watermark) to the same pdf.
But when I write the pdf with header and footer , the footer overwrites the
contents in the pdf.
2)Can I read the contents in one pdf a
Hi Emmanuel !
Leonard tried to talk ou into the standard PDF signatures but you stood firmly
for XFA signatures ;-)
What's your use case for XFA signatures ? Maybe we could add support for it
into our signature server if there is a significant demand.
Greetings
Andreas
- original Nachric
Thank you Leonard, that is helpful!
If someone can confirm or not if iText supports MDP+ Signatures (Paulo or
Bruno?), it would make me save a lot of time!
And also, I do insist I know, but if someone discovers the checksum details
calculations, it would be terrific!
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On 7/13/11 9:20 AM, "Emmanuel Coste" wrote:
>You are right, if I remove the manifest child, the signature becomes
>VALID.
Glad to hear that it worked!
>BUT I need also to handle the child manifest, for example this kind of
>manifest:
OK, but I don't know if iText supports MDP+ (aka Certifyin
I must correct my previous post:
About the signed dynamic PDF file, when I said the signature was invalid, it
was wrong: in Acrobat Reader, in the Signature tab, the signature is seen as
valid BUT below this, I see the following item :
"Form fields containing property modifications
Field formula
You are right, if I remove the manifest child, the signature becomes VALID.
BUT I need also to handle the child manifest, for example this kind of
manifest:
If I understand well, to sign properly this document, you are telling me
that I must use a XML Digital signature (add the "" node to the
X
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