I've tried different things, I've searched the book, but I still don't
know how to add javascript to a field (accessed by its name) from an
existing pdf. I've tried the following code and it works ok, but I
need to access a field by its name, and not by its number:
/***********************************************************/
PdfDictionary aa = new PdfDictionary();
PdfReader reader = new PdfReader("autoconsumo_new.pdf");
PdfDictionary js3 = new PdfDictionary();
js3.put(PdfName.S, PdfName.JAVASCRIPT);
js3.put(PdfName.JS, new PdfString("if ( event.fieldFull ||
event.willCommit ) " +
"this.getField(\"F02VNIF_____\").setFocus();"));
aa.put(PdfName.K, js3);
PdfDictionary catalog = reader.getCatalog();
PdfDictionary form =
(PdfDictionary)PdfReader.getPdfObject(catalog.get(PdfName.ACROFORM));
PdfArray fields = (PdfArray)form.get(PdfName.FIELDS);
PdfDictionary field =
(PdfDictionary)PdfReader.getPdfObject((PdfObject)fields.getArrayList().get(0));
/*I want to change that get(0) for something like get(name) */
field.put(PdfName.AA, aa);
/******************************************************************/
Which change do I need to do?
It's very important.
Lots of thanks,
Jesús.
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