하면이 시도 - 그것은 "예"및 "Off"로 표시 체크 상자 모양 스트림, 즉 콘텐츠 스트림을 생성한다. 또한 위젯을 사용하는 방식을 수정하여 파일이 더 간단하게 만들었습니다. 사용한 전략 (필드와 별도의 위젯)은 한 필드에 여러 위젯이있는 경우에만 유용합니다.
운영자가 수행하는 작업 (횡설수설)을 보려면 PDF specification을보고 "운영자 요약"을 검색하십시오.
public static void main(String[] args) throws IOException
{
PDDocument document = new PDDocument();
PDPage page = new PDPage();
document.addPage(page);
// just a rectangle to be able to locate the checkbox
PDPageContentStream contentStream = new PDPageContentStream(document, page, AppendMode.APPEND, false);
contentStream.addRect(100, 100, 50, 50);
contentStream.setLineWidth(1);
contentStream.setNonStrokingColor(Color.WHITE);
contentStream.setStrokingColor(Color.BLACK);
contentStream.stroke();
contentStream.close();
PDAcroForm acroForm = new PDAcroForm(document);
PDCheckBox checkBox = new PDCheckBox(acroForm);
checkBox.setPartialName("xxx");
//PDAnnotationWidget widget = new PDAnnotationWidget();
PDAnnotationWidget widget = checkBox.getWidgets().get(0);
widget.setRectangle(new PDRectangle(100, 100, 10, 10));
widget.setAnnotationFlags(4);
widget.setPage(page);
//widget.setParent(checkBox);
// inspired by annot 92 of file from PDFBOX-563
// annot 172 has "checkmark" instead, but more more complex, needs ZaDb
String offNString = "1 g\n"
+ "0 0 9.5 9.5 re\n"
+ "f\n"
+ "0.5 0.5 9.5 9.5 re\n"
+ "s";
String offDString = "0.75 g\n"
+ "0 0 9.5 9.5 re\n"
+ "f\n"
+ "0.5 0.5 9.5 9.5 re\n"
+ "s";
String yesNString = "1 g\n"
+ "0 0 9 9.5 re\n"
+ "f\n"
+ "0.5 0.5 9.5 9.5 re\n"
+ "s\n"
+ "q\n"
+ " 1 1 9 9 re\n"
+ " W\n"
+ " n\n"
+ " 2 8 m\n"
+ " 8 2 l\n"
+ " 8 8 m\n"
+ " 2 2 l\n"
+ " s\n"
+ "Q";
String yesDString = "0.75 g\n"
+ "0 0 9 9.5 re\n"
+ "f\n"
+ "0.5 0.5 9.5 9.5 re\n"
+ "s\n"
+ "q\n"
+ " 1 1 9 9 re\n"
+ " W\n"
+ " n\n"
+ " 2 8 m\n"
+ " 8 2 l\n"
+ " 8 8 m\n"
+ " 2 2 l\n"
+ " s\n"
+ "Q";
COSDictionary apNDict = new COSDictionary();
COSStream offNStream = new COSStream();
offNStream.setItem(COSName.BBOX, new PDRectangle(10, 10));
offNStream.setItem(COSName.FORMTYPE, COSInteger.ONE);
offNStream.setItem(COSName.TYPE, COSName.XOBJECT);
offNStream.setItem(COSName.SUBTYPE, COSName.FORM);
offNStream.setItem(COSName.MATRIX, new Matrix().toCOSArray());
offNStream.setItem(COSName.RESOURCES, new COSDictionary());
OutputStream os = offNStream.createOutputStream();
os.write(offNString.getBytes());
os.close();
apNDict.setItem(COSName.Off, offNStream);
COSStream yesNStream = new COSStream();
yesNStream.setItem(COSName.BBOX, new PDRectangle(10, 10));
yesNStream.setItem(COSName.FORMTYPE, COSInteger.ONE);
yesNStream.setItem(COSName.TYPE, COSName.XOBJECT);
yesNStream.setItem(COSName.SUBTYPE, COSName.FORM);
yesNStream.setItem(COSName.MATRIX, new Matrix().toCOSArray());
yesNStream.setItem(COSName.RESOURCES, new COSDictionary());
os = yesNStream.createOutputStream();
os.write(yesNString.getBytes());
os.close();
apNDict.setItem(COSName.getPDFName("Yes"), yesNStream);
COSDictionary apDDict = new COSDictionary();
COSStream offDStream = new COSStream();
offDStream.setItem(COSName.BBOX, new PDRectangle(16, 16));
offDStream.setItem(COSName.FORMTYPE, COSInteger.ONE);
offDStream.setItem(COSName.TYPE, COSName.XOBJECT);
offDStream.setItem(COSName.SUBTYPE, COSName.FORM);
offDStream.setItem(COSName.MATRIX, new Matrix().toCOSArray());
offDStream.setItem(COSName.RESOURCES, new COSDictionary());
os = offDStream.createOutputStream();
os.write(offDString.getBytes());
os.close();
apDDict.setItem(COSName.Off, offDStream);
COSStream yesDStream = new COSStream();
yesDStream.setItem(COSName.BBOX, new PDRectangle(16, 16));
yesDStream.setItem(COSName.FORMTYPE, COSInteger.ONE);
yesDStream.setItem(COSName.TYPE, COSName.XOBJECT);
yesDStream.setItem(COSName.SUBTYPE, COSName.FORM);
yesDStream.setItem(COSName.MATRIX, new Matrix().toCOSArray());
yesDStream.setItem(COSName.RESOURCES, new COSDictionary());
os = yesDStream.createOutputStream();
os.write(yesDString.getBytes());
os.close();
apDDict.setItem(COSName.getPDFName("Yes"), yesDStream);
PDAppearanceDictionary appearance = new PDAppearanceDictionary();
PDAppearanceEntry appearanceNEntry = new PDAppearanceEntry(apNDict);
appearance.setNormalAppearance(appearanceNEntry);
// push appearance doesn't look nice enough, has weird effect when pushing
// PDAppearanceEntry appearanceDEntry = new PDAppearanceEntry(apDDict);
// appearance.setDownAppearance(appearanceDEntry);
widget.setAppearance(appearance);
// MK (appearance characteristics dictionary)
COSDictionary acdDict = new COSDictionary();
acdDict.setItem(COSName.CA, new COSString("8")); // 8 is X, 4 is checkmark
COSArray bcArray = new COSArray();
bcArray.add(COSInteger.ZERO);
acdDict.setItem(COSName.BC, bcArray);
COSArray bgArray = new COSArray();
bgArray.add(COSInteger.ONE);
acdDict.setItem(COSName.BG, bgArray);
PDAppearanceCharacteristicsDictionary acd = new PDAppearanceCharacteristicsDictionary(acdDict);
widget.setAppearanceCharacteristics(acd);
// List<PDAnnotationWidget> widgets = new ArrayList<>();
// widgets.add(widget);
page.getAnnotations().add(widget);
// checkBox.setWidgets(widgets);
checkBox.setValue("Yes");
acroForm.getFields().add(checkBox);
document.getDocumentCatalog().setAcroForm(acroForm);
File file = new File("checkbox.pdf");
document.save(file);
document.close();
}
체크 표시 대신 "x"가있는 해결책이 유용할까요? –
예. 의도적으로 체크 표시를 선택하지 않았습니다. – user489872