Oracle 发布新款 PDF 插件，更多实用功能迎来突破（oracle pdf插件）

Oracle 发布新款 PDF 插件，更多实用功能迎来突破!

Oracle公司日前推出了一款新的PDF插件，该插件基于Adobe技术开发而成，使得PDF操作更加便捷高效，拓展了Oracle在PDF领域的应用范围。

新的PDF插件包含以下几个实用功能:

1. PDF标注功能

在新的PDF插件中，用户可以轻松地对PDF文档进行各种标注。无论是在文本上添加注释，还是在图片中插入标记，都可以方便地实现。除此之外，还可以对标注进行分类和分组，使得管理更加智能化。

2. PDF转换功能

该插件也支持将PDF文档转换为Word、Excel、PowerPoint等多种常用文档格式。用户可以针对不同的使用需求进行转换，提高了文档共享和使用的灵活性。

3. PDF编辑功能

插件中还提供了PDF文档编辑功能。用户可以对文本、图片、表格等多种组件进行编辑和调整，修改PDF文件的内容和格式，工作效率和效果大幅提升。

4. PDF安全功能

新的PDF插件还加强了PDF文档的安全性。用户可以对PDF文档进行密码保护、文件签名等操作，确保PDF文件内容不被非法修改或泄露。

除此之外，该插件还提供了批量转换、OCR识别、信息抽取、PDF组合等多种实用功能，满足了用户的多样化需求。

使用这些新的功能前提是需要先安装此插件。为了获得更好的用户体验，Oracle团队一直在持续更新和维护该插件，保证其兼容性和功能性表现。

以下是代码示例：

1. PDF标注

注释文本：

String filePath = "test.pdf";
PdfReader reader = new PdfReader(filePath);
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(outputPath));
AcroFields fields = stamper.getAcroFields();
fields.setField("name", "张三");
fields.setField("age", "18");
stamper.close();

插入标签：

String sourcePath = "test.pdf";
String outputPath = "output.pdf";
PdfReader reader = new PdfReader(sourcePath);
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(outputPath));
PdfContentByte canvas = stamper.getOverContent(1);
PdfAnnotation annotation = PdfAnnotation.createText(stamper.getWriter(), new Rectangle(200f, 200f, 300f, 300f),
        "Hello, World!", "UTF-8", true, "Comment");
canvas.addAnnotation(annotation, 1);
stamper.close();

2. PDF转换

PDF转Word：

String inputPdfPath = "test.pdf";
String outputDocPath = "output.doc";
com.aspose.pdf.Document pdfDocument = new com.aspose.pdf.Document(inputPdfPath);
pdfDocument.save(outputDocPath, com.aspose.pdf.SaveFormat.Doc);

PDF转Excel：

String inputPdfPath = "test.pdf";
String outputExcelPath = "output.xlsx";
com.aspose.pdf.Document pdfDocument = new com.aspose.pdf.Document(inputPdfPath);
WorksheetCollection worksheets = new Workbook().getWorksheets();
for (int i = 1; i 
    PdfPageEditor editor = new PdfPageEditor();
    editor.bindPdf(inputPdfPath);
    editor.extractPage(i);
    ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(editor.getPageData());
    com.aspose.cells.Workbook workbook = new com.aspose.cells.Workbook(byteArrayInputStream);
    Worksheet worksheet = workbook.getWorksheets().get(0);
    worksheets.add(worksheet.getName());
    worksheet.getCellArea().copyTo(worksheets.get(worksheets.getCount() - 1).getCells(), 0, 0);
}
workbook.save(outputExcelPath);

3. PDF编辑

修改文本：

String outputPath = "output.pdf";
PdfReader reader = new PdfReader("test.pdf");
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(outputPath));
AcroFields fields = stamper.getAcroFields();
fields.setField("name", "李四");
stamper.close();

插入图片：

String outputPath = "output.pdf";
PdfReader reader = new PdfReader("test.pdf");
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(outputPath));
PdfContentByte canvas = stamper.getOverContent(1);
Image image = Image.getInstance("test.jpg");
image.setAbsolutePosition(200f, 200f);
canvas.addImage(image);
stamper.close();

4. PDF安全

加入密码保护：

String inputPdfPath = "test.pdf";
String outputPdfPath = "output.pdf";
PdfReader reader = new PdfReader(inputPdfPath);
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(outputPdfPath));
stamper.setEncryption("123456".getBytes(), "123456".getBytes(), PdfWriter.ALLOW_COPY, PdfWriter.ENCRYPTION_AES_128);
stamper.close();

加入数字签名：

String inputPdfPath = "test.pdf";
String outputPdfPath = "output.pdf";
BouncyCastleProvider provider = new BouncyCastleProvider();
Security.addProvider(provider);
KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());
ks.load(new FileInputStream("my.keystore"), "123456".toCharArray());
String alias = (String) ks.aliases().nextElement();
PrivateKey pk = (PrivateKey) ks.getKey(alias, "123456".toCharArray());
java.security.cert.Certificate[] chn = ks.getCertificateChn(alias);
PdfReader reader = new PdfReader(inputPdfPath);
FileOutputStream os = new FileOutputStream(outputPdfPath);
PdfStamper stamper = PdfStamper.createSignature(reader, os, '\0', null, true);
PdfSignatureAppearance appearance = stamper.getSignatureAppearance();
appearance.setSignatureGraphic(Image.getInstance("stamp.png"));
appearance.setReason("我是签名者");
appearance.setLocation("北京");
appearance.setVisibleSignature(new Rectangle(200, 200, 300, 300), 1, "sig");
ExternalSignature es = new PrivateKeySignature(pk, "SHA-256", "BC");
ExternalDigest digest = new BouncyCastleDigest();
MakeSignature.signDetached(appearance, digest, es, chn, null, null, null, 0, MakeSignature.CryptoStandard.CADES);
stamper.close();