Example usage for com.lowagie.text.pdf PdfLister listDict

Introduction

In this page you can find the example usage for com.lowagie.text.pdf PdfLister listDict.

Prototype

public void listDict(PdfDictionary dictionary) 

Source Link

Document

Visualizes a PdfDictionary object.

Usage

From source file:questions.forms.GetTextFields.java

@SuppressWarnings("unchecked")
public static void main(String[] args) {
    try {/*from   ww  w .j a  va2s. c  o  m*/
        PrintStream out = new PrintStream(new File(RESULT));

        PdfLister lister = new PdfLister(out);

        PdfReader reader = new PdfReader(RESOURCE);

        PdfDictionary root = reader.getCatalog();
        PdfDictionary acroform = root.getAsDict(PdfName.ACROFORM);

        out.println("These are the form's font dictionaries:");
        PdfDictionary fonts = acroform.getAsDict(PdfName.DR).getAsDict(PdfName.FONT);
        for (PdfName key : (Set<PdfName>) fonts.getKeys()) {
            lister.listDict((PdfDictionary) PdfReader.getPdfObject(fonts.get(key)));
        }
        out.println("--------------");

        out.println("This is the default appearance for the complete form:");
        lister.listAnyObject(PdfReader.getPdfObject(acroform.get(PdfName.DA)));
        out.println("--------------");

        AcroFields form = reader.getAcroFields();
        Map<String, Item> fields = form.getFields();
        Item item;
        for (String name : fields.keySet()) {
            out.println(name);
            if (form.getFieldType(name) == AcroFields.FIELD_TYPE_TEXT) {
                item = form.getFieldItem(name);
                PdfDictionary dict = (PdfDictionary) item.getMerged(0);

                out.println("This is the field's font dictionary:");
                fonts = dict.getAsDict(PdfName.DR).getAsDict(PdfName.FONT);
                for (PdfName key : (Set<PdfName>) fonts.getKeys()) {
                    lister.listDict((PdfDictionary) PdfReader.getPdfObject(fonts.get(key)));
                }
                out.println("---");
                out.println("This is the field's default appearance");
                lister.listAnyObject(PdfReader.getPdfObject(dict.get(PdfName.DA)));
            } else {
                out.println("NOT A TEXT FIELD!");
            }
            out.println("--------------");
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}

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