Pdf转Word案例（java）

需要导入aspose-pdf.jar 需要先手动下载jar包到本地，然后通过systemPath在pom文件中引入。

下载地址：https://releases.aspose.com/java/repo/com/aspose/aspose-pdf/25.4/

        <dependency><groupId>com.aspose</groupId><artifactId>aspose-pdf</artifactId><version>25.4</version><scope>system</scope><systemPath>C:/Users/aaa/Downloads/aspose-pdf-25.4.jar</systemPath></dependency>

主要功能总结

功能	描述
PDF 创建与编辑	创建、添加文本/图像/表格等
格式转换	PDF ↔ Word/Excel/HTML/Image
合并与拆分	合并多个 PDF 或按页拆分
安全保护	加密/解密、权限设置
表单处理	动态表单字段的创建与填充
内容提取	提取文本、图像、元数据
高级操作	水印、注释、页眉页脚、压缩优化

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如果需要word转pdf，需要使用aspose-words.jar包。

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1. 创建 PDF 文件

import com.aspose.pdf.Document;
import com.aspose.pdf.Page;
import com.aspose.pdf.TextFragment;public class CreatePdf {public static void main(String[] args) {// 创建空 PDF 文档Document doc = new Document();// 添加页面Page page = doc.getPages().add();// 添加文本TextFragment text = new TextFragment("Hello, Aspose.PDF!");text.getTextState().setFontSize(14);page.getParagraphs().add(text);// 保存 PDFdoc.save("output.pdf");}
}

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2. PDF 转 Word (DOCX)

import com.aspose.pdf.Document;
import com.aspose.pdf.SaveFormat;public class PdfToWord {public static void main(String[] args) {Document doc = new Document("input.pdf");doc.save("output.docx", SaveFormat.DocX);}
}

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3. PDF 转 HTML

import com.aspose.pdf.Document;
import com.aspose.pdf.HtmlSaveOptions;
import com.aspose.pdf.SaveFormat;public class PdfToHtml {public static void main(String[] args) {Document doc = new Document("input.pdf");HtmlSaveOptions options = new HtmlSaveOptions();doc.save("output.html", options);}
}

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4. PDF 转图像（PNG/JPEG）

import com.aspose.pdf.Document;
import com.aspose.pdf.devices.JpegDevice;
import com.aspose.pdf.devices.Resolution;public class PdfToImage {public static void main(String[] args) {Document doc = new Document("input.pdf");// 设置分辨率（300 dpi）Resolution resolution = new Resolution(300);JpegDevice device = new JpegDevice(resolution);// 将每一页转为 JPEGfor (int i = 1; i <= doc.getPages().size(); i++) {device.process(doc.getPages().get_Item(i), "page_" + i + ".jpg");}}
}

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5. 合并多个 PDF 文件

import com.aspose.pdf.Document;
import com.aspose.pdf.facades.PdfFileEditor;public class MergePdf {public static void main(String[] args) {PdfFileEditor editor = new PdfFileEditor();// 合并两个 PDF 文件editor.concatenate("input1.pdf", "input2.pdf", "merged.pdf");}
}

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6. 拆分 PDF 文件

import com.aspose.pdf.facades.PdfFileEditor;public class SplitPdf {public static void main(String[] args) {PdfFileEditor editor = new PdfFileEditor();// 按页码拆分（例如：拆分前3页）editor.extract("input.pdf", 1, 3, "split.pdf");}
}

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7. 添加水印

import com.aspose.pdf.*;
import com.aspose.pdf.facades.WatermarkArtifact;public class AddWatermark {public static void main(String[] args) {Document doc = new Document("input.pdf");// 添加水印文本WatermarkArtifact watermark = new WatermarkArtifact();watermark.setText("Confidential");watermark.getTextState().setFontSize(48);watermark.getTextState().setFont(FontRepository.findFont("Arial"));watermark.setOpacity(0.5);// 添加到每一页for (Page page : doc.getPages()) {page.getArtifacts().add(watermark);}doc.save("output.pdf");}
}

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8. 加密/解密 PDF

import com.aspose.pdf.Document;
import com.aspose.pdf.facades.DocumentPrivilege;public class EncryptPdf {public static void main(String[] args) {Document doc = new Document("input.pdf");// 设置密码和权限doc.encrypt("user_pass", "owner_pass", DocumentPrivilege.getPrint(), CryptoAlgorithm.AESx256);doc.save("encrypted.pdf");}
}

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9. 提取 PDF 文本

import com.aspose.pdf.Document;
import com.aspose.pdf.TextAbsorber;public class ExtractText {public static void main(String[] args) {Document doc = new Document("input.pdf");TextAbsorber absorber = new TextAbsorber();// 提取所有页面文本doc.getPages().accept(absorber);String extractedText = absorber.getText();System.out.println(extractedText);}
}

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10. 添加表单字段

import com.aspose.pdf.*;public class AddFormField {public static void main(String[] args) {Document doc = new Document();Page page = doc.getPages().add();// 添加文本框TextBoxField textBox = new TextBoxField(page, new Rectangle(100, 600, 200, 650));textBox.setPartialName("text_field");textBox.setValue("Default Text");doc.getForm().add(textBox);doc.save("form.pdf");}
}

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11. 添加页眉/页脚

import com.aspose.pdf.*;public class AddHeaderFooter {public static void main(String[] args) {Document doc = new Document("input.pdf");// 添加页眉TextFragment header = new TextFragment("Header Text");header.getTextState().setFontSize(12);header.setHorizontalAlignment(HorizontalAlignment.Center);// 添加到每一页for (Page page : doc.getPages()) {page.getParagraphs().add(header);}doc.save("output.pdf");}
}

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12. 压缩 PDF

import com.aspose.pdf.Document;
import com.aspose.pdf.optimization.OptimizationOptions;public class CompressPdf {public static void main(String[] args) {Document doc = new Document("input.pdf");OptimizationOptions options = new OptimizationOptions();options.setRemoveUnusedObjects(true);options.setLinkDuplcateStreams(true);doc.optimizeResources(options);doc.save("compressed.pdf");}
}

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13. 处理 PDF 注释

import com.aspose.pdf.*;public class AddAnnotation {public static void main(String[] args) {Document doc = new Document();Page page = doc.getPages().add();// 添加高亮注释HighlightAnnotation highlight = new HighlightAnnotation(page, new Rectangle(100, 600, 200, 650));highlight.setTitle("Important Note");highlight.setColor(Color.getYellow());page.getAnnotations().add(highlight);doc.save("annotated.pdf");}
}

注意事项

1. 许可证：未应用许可证时，生成的文件会包含评估水印。通过以下代码激活：

   com.aspose.pdf.License license = new com.aspose.pdf.License();
   license.setLicense("Aspose.PDF.Java.lic");
   

2. 依赖管理：建议通过 Maven/Gradle 管理依赖，确保使用最新版本。

3. 文档参考：完整 API 文档见 Aspose.PDF for Java Documentation。