> I am trying to list form fields using the following code. There is no issue
> for a few PDF documents but for some I am getting the error -
> java.lang.NullPointerException.
Please attach the whole stack trace, so that we have an idea what to look for.
Andreas Lehmkühler
> String pdfSource = "SIMPLE IRA App 1.828247.101 & Ret Acct
> Customer Agmt
> 1.830486.102 -- as of 6-6-08.pdf";
> try {
>
> FileOutputStream outputObj;
> PrintStream outputFile;
> String fileName = pdfSource.replace(".","_") + ".txt";
>
> outputObj = new FileOutputStream(fileName);
> outputFile = new PrintStream(outputObj);
>
> PDDocument document = PDDocument.load(pdfSource);
>
> try {
> if (document.isEncrypted()) {
> document.decrypt("");
> }
> } catch (Exception e) {
> System.out.println("Failed to decrypt document
> #");
> }
>
> List list =
> document.getDocumentCatalog().getAcroForm().getFields();
> PDField pdfield;
>
> for (int i = 0; i < list.size(); i++)
> {
> pdfield = (PDField) list.get(i);
> String fldName = pdfield.getPartialName();
> outputFile.println(fldName);
> }
> document.close();
> outputFile.close();
> } catch (Exception e) {
> System.out.println("Error!" + e);
> }
>
> Please let me know what the issue is.
>
>
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