// $Id$ package mkl.testarea.pdfbox2.sign; import java.awt.Color; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import org.apache.pdfbox.Loader; import org.apache.pdfbox.cos.COSName; import org.apache.pdfbox.pdmodel.PDDocument; import org.apache.pdfbox.pdmodel.PDPage; import org.apache.pdfbox.pdmodel.PDPageContentStream; import org.apache.pdfbox.pdmodel.PDResources; import org.apache.pdfbox.pdmodel.common.PDRectangle; import org.apache.pdfbox.pdmodel.font.PDFont; import org.apache.pdfbox.pdmodel.font.PDType1Font; import org.apache.pdfbox.pdmodel.interactive.annotation.PDAnnotationWidget; import org.apache.pdfbox.pdmodel.interactive.annotation.PDAppearanceDictionary; import org.apache.pdfbox.pdmodel.interactive.annotation.PDAppearanceStream; import org.apache.pdfbox.pdmodel.interactive.form.PDAcroForm; import org.apache.pdfbox.pdmodel.interactive.form.PDSignatureField; import org.junit.BeforeClass; import org.junit.Test; /** * @author mkl */ public class TestEmptySignatureField { final static File RESULT_FOLDER = new File("target/test-outputs", "sign"); @BeforeClass public static void setUpBeforeClass() throws Exception { RESULT_FOLDER.mkdirs(); } /** * <a href="http://stackoverflow.com/questions/37601092/pdfbox-identify-specific-pages-and-functionalities-recommendations"> * PDFBox identify specific pages and functionalities recommendations * </a> * * <p> * This test shows how to add an empty signature field with a custom appearance * to an existing PDF. * </p> */ @Test public void testAddEmptySignatureField() throws IOException { try ( InputStream sourceStream = getClass().getResourceAsStream("test.pdf"); OutputStream output = new FileOutputStream(new File(RESULT_FOLDER, "test-with-empty-sig-field.pdf"))) { PDFont font = PDType1Font.HELVETICA; PDResources resources = new PDResources(); resources.put(COSName.getPDFName("Helv"), font); PDDocument document = Loader.loadPDF(sourceStream); PDAcroForm acroForm = new PDAcroForm(document); acroForm.setDefaultResources(resources); document.getDocumentCatalog().setAcroForm(acroForm); PDRectangle rect = new PDRectangle(50, 750, 200, 50); PDAppearanceDictionary appearanceDictionary = new PDAppearanceDictionary(); PDAppearanceStream appearanceStream = new PDAppearanceStream(document); appearanceStream.setBBox(rect.createRetranslatedRectangle()); appearanceStream.setResources(resources); appearanceDictionary.setNormalAppearance(appearanceStream); PDPageContentStream contentStream = new PDPageContentStream(document, appearanceStream); contentStream.setStrokingColor(Color.BLACK); contentStream.setNonStrokingColor(Color.LIGHT_GRAY); contentStream.setLineWidth(2); contentStream.addRect(0, 0, rect.getWidth(), rect.getHeight()); contentStream.fill(); contentStream.moveTo(1 * rect.getHeight() / 4, 1 * rect.getHeight() / 4); contentStream.lineTo(2 * rect.getHeight() / 4, 3 * rect.getHeight() / 4); contentStream.moveTo(1 * rect.getHeight() / 4, 3 * rect.getHeight() / 4); contentStream.lineTo(2 * rect.getHeight() / 4, 1 * rect.getHeight() / 4); contentStream.moveTo(3 * rect.getHeight() / 4, 1 * rect.getHeight() / 4); contentStream.lineTo(rect.getWidth() - rect.getHeight() / 4, 1 * rect.getHeight() / 4); contentStream.stroke(); contentStream.setNonStrokingColor(Color.DARK_GRAY); contentStream.beginText(); contentStream.setFont(font, rect.getHeight() / 5); contentStream.newLineAtOffset(3 * rect.getHeight() / 4, -font.getBoundingBox().getLowerLeftY() * rect.getHeight() / 5000); contentStream.showText("Customer"); contentStream.endText(); contentStream.close(); PDSignatureField signatureField = new PDSignatureField(acroForm); signatureField.setPartialName("SignatureField"); PDPage page = document.getPage(0); PDAnnotationWidget widget = signatureField.getWidgets().get(0); widget.setAppearance(appearanceDictionary); widget.setRectangle(rect); widget.setPage(page); page.getAnnotations().add(widget); acroForm.getFields().add(signatureField); document.save(output); document.close(); } } }