[英]PDFBox 2.0.8 issue while signing document
我正在嘗試使用此方法簽署pdf,但獲得的文檔沒有大小:
public static void sign(PDDocument doc) throws KeyStoreException, NoSuchAlgorithmException, CertificateException,
IOException, UnrecoverableKeyException {
System.out.println("Document pages ? " + doc.getNumberOfPages());
KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());
ks.load(VisibleSignature.class.getResourceAsStream(CERT_FILE), ALIAS_PASS);
System.out.println("KeyStore is null ? " + (ks == null));
VisibleSignature vs = new VisibleSignature(ks, ALIAS_PASS.clone());
InputStream is = Resource.get(IMAGE_FILE);
int page = 1;
vs.setVisibleSignDesigner(doc, 0, 0, -50, is, page);
is.close();
vs.setVisibleSignatureProperties("Test", "Test", "Test", 0, page, true);
PDSignature signature = new PDSignature();
PDAcroForm acroForm = doc.getDocumentCatalog().getAcroForm();
System.out.println("Acroform is null ? " + (acroForm == null));
System.out.println("Acroform getNeedAppearances ? " + (acroForm.getNeedAppearances()));
if (acroForm != null && acroForm.getNeedAppearances())
if (acroForm.getFields().isEmpty())
acroForm.getCOSObject().removeItem(COSName.NEED_APPEARANCES);
else
System.out.println("/NeedAppearances is set, signature may be ignored by Adobe Reader");
signature.setFilter(PDSignature.FILTER_ADOBE_PPKLITE);
signature.setSubFilter(PDSignature.SUBFILTER_ADBE_PKCS7_DETACHED);
if (vs.visibleSignatureProperties != null) {
vs.visibleSignatureProperties.buildSignature();
signature.setName(vs.visibleSignatureProperties.getSignerName());
signature.setLocation(vs.visibleSignatureProperties.getSignerLocation());
signature.setReason(vs.visibleSignatureProperties.getSignatureReason());
System.out.println("SignerName " + vs.visibleSignatureProperties.getSignerName());
}
signature.setSignDate(Calendar.getInstance());
vs.signatureOptions = new SignatureOptions();
vs.signatureOptions.setVisualSignature(vs.visibleSignatureProperties.getVisibleSignature());
vs.signatureOptions.setPage(vs.visibleSignatureProperties.getPage() - 1);
doc.addSignature(signature, vs.signatureOptions);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
doc.saveIncremental(baos);
doc.close();
IOUtils.closeQuietly(vs.signatureOptions);
byte[] content = baos.toByteArray();
System.out.println("Content length: >>>>>>>>>>>>>>>>>>> " + content.length);
}
這就是我在日食日志中得到的:
18:50:25,702信息[默認任務14]標准輸出-文檔頁面? 1
18:50:25,740信息[默認任務14]標准輸出-KeyStore為空? 假
18:50:25,779信息[默認任務14]標准輸出-Acroform為空嗎? 假
18:50:25,780信息[默認任務14]標准輸出-Acroform getNeedAppearances嗎? 假
18:50:25,782信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-PDF結構已創建
18:50:25,782信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDFTemplateCreator-pdf構建已開始
18:50:25,782信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-ProcSet數組已創建
18:50:25,782信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-PDF頁面已創建
18:50:25,783信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-AcroForm已創建
18:50:25,788信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-簽名字段已創建
18:50:25,788信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-PDSignature已創建
18:50:25,788信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-AcroForm詞典已創建
18:50:25,789信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-已添加矩陣
18:50:25,792信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-簽名矩形已創建
18:50:25,793信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-格式化矩形
18:50:25,815信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-可見簽名圖像已創建
18:50:25,815信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-持有人表單流已創建
18:50:25,816信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-持有人表單資源已創建
18:50:25,816信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-持有人表單已創建
18:50:25,816信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-PDF外觀字典已創建
18:50:25,817信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-已創建另一種形式的流(內部形式-它將在持有人形式內)
18:50:25,817信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-已創建另一種形式的資源(內部形式-它將在持有人形式內)
18:50:25,817信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-已創建另一種形式(內部形式-它將在持有人形式內)
18:50:25,817信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-現在在內部表單中插入內部表單
18:50:25,817信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-創建的圖像表單流
18:50:25,817信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-創建的圖像表單資源
18:50:25,818信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-創建的圖像表單
18:50:25,818信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-創建的背景層表單
18:50:25,818信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-將ProcSet插入PDF
18:50:25,818信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-將外觀流注入pdf
18:50:25,818信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-可見簽名已創建
18:50:25,819信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDVisibleSigBuilder-WidgetDictionary已創建
18:50:25,825 DEBUG [默認任務14] org.apache.pdfbox.cos.COSStream-創建InputStream,而無需在流之前寫入數據的情況下調用它。
18:50:25,825信息[默認任務14] org.apache.pdfbox.pdmodel.interactive.digitalsignature.visible.PDFTemplateCreator-流返回開始,大小= 21301
18:50:25,825信息[默認任務14]標准輸出-SignerName測試
18:50:25,857信息[默認任務14]標准輸出-內容長度:>>>>>>>>>>>>>>>>>>>>> 0
有人知道這是怎么回事嗎?
在您的代碼中,沒有為文檔提供可用於SignatureInterface
實現。 在這種用例中不提供該選項,會使PDFBox假定您將在外部創建簽名(例如,查看原始的CreateVisibleSignature
方法sign
)。 在這種情況下,使用ExternalSigningSupport
方法setSignature
設置簽名后,結果將寫入輸出流。 否則,您的ByteArrayOutputStream baos
保持為空。
但是您確實有一個SignatureInterface
實例,該實例已經使用證書和密鑰材料進行了初始化: VisibleSignature vs
因此,我認為您沒有提供SignatureInterface
並不是故意的。
因此,要提供SignatureInterface
你必須使用一個PDDocument.addSignature
超載與SignatureInterface
參數。 例如替換您的電話
doc.addSignature(signature, vs.signatureOptions);
通過
doc.addSignature(signature, vs, vs.signatureOptions);
使您的代碼按需工作。
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