How to find Image Region and add image in it?

[yiyun0918@adobeforums.com]

Hello,
I want to write a plug-in for Adobe Reader 8.First,the plug-in find the appointed Image Region such as named myImage in PDF file which designed by Adobe Designer 8.0. Then,want to add a picture in the image region when people used Adobe Reader.
I don't know whether plug-in for Adobe Reader can realize that.If it can do,how to find the Image Region?
Is there anyone can give me any suggestion?

Thanks!
yun

[Bernd Alheit]

Before starting your project you must contact Adobe:
<http://www.adobe.com/devnet/reader/ikla.html>

[yiyun0918@adobeforums.com]

We have contacted Adobe.
Can you tell me whether we can realize that function?
Thanks!

[Aandi_Inston@adobeforums.com]

It seems unlikely that Adobe would allow you to write such a plug-in.
Have they indicated it will be allowed?

If so, this is still a major technical challenge, because a Designer
form is not a normal PDF, and 99% of the API is useless. You would
have to extract the embedded XFA XML, update the XML, and resave into
the PDF.

Aandi Inston

[yiyun0918@adobeforums.com]

Thank Aandi Inston!
When I used API AFPDFieldGetName to get the name of a field,the string it return is not equal to the name that I set .Why?
Codes:
ACCB1 ASBool ACCB2 FieldEnumProc ( PDField fldP, void *clientData)
{

CosDoc cosDoc;
CosObj fieldCosObj, keyValueObj, stringObj;
char *fieldName;
ASInt32 fieldNameLength;
DURING
if ( AFPDFieldIsValid (fldP))
{
fieldCosObj = AFPDFieldGetCosObj (fldP);
if (! CosDictKnownKeyString (fieldCosObj, "FT"))
E_RETURN( true );
keyValueObj = CosDictGetKeyString (fieldCosObj, "FT");
if ( CosName != CosObjGetType (keyValueObj))
E_RETURN( true )
if (( CosNameValue (keyValueObj) == ASAtomFromString ("Tx"))) {
cosDoc = CosObjGetDoc (fieldCosObj);
fieldName = AFPDFieldGetName (fldP);
fieldNameLength = strlen (fieldName);
stringObj = CosNewString (cosDoc, false , fieldName, fieldNameLength);
AFPDFieldSetValue (fldP, stringObj);
}
}
HANDLER
END_HANDLER

return true;
}

[PDL@adobeforums.com]

Because those APIs are only for AcroForms. Designer creates XFA forms, and as Aandi mentioned 99% of the APIs are useless on XFA forms. You'll have to code this entirely from scratch, again as Aandi mentioned.

[yiyun0918@adobeforums.com]

Thanks!
1.These codes can get the Fields in PDF.So , whether Adobe's SDK provide other API to realize that?
2.If I have to begin from scratch, where do I begin?Is there any document?
3.I didn't know much about XFA.Is there any API to parse XFA?

[Aandi_Inston@adobeforums.com]

>1.These codes can get the Fields in PDF

Yes, but only if you make a PDF which is an Acroform.
You have chosen to use Designer instead. This is completely different.

>.So , whether Adobe's SDK provide other API to realize that?

I am not aware of anything in the Acrobat SDK, except to work as I
described.

>2.If I have to begin from scratch, where do I begin?Is there any document?

You should always start a project on this scale by reading the PDF
Reference, but most of it will not be relevant. So you should
probably start by reading the section about XFA forms. This references
other specifications.

>3.I didn't know much about XFA.Is there any API to parse XFA?

XFA is a form of XML. There are many APIs to parse XML files, you
don't need one from Adobe, once you have it extracted.

I emphasise: this is a major project. Very few programmers have
attempted projects of this kind. It would be much simpler if you could
work with Acroforms. Why are you using Designer, specifically, rather
than Acroforms?


Aandi Inston