Java pdf文件书签承前缩放验证的设置方法

Java pdf文件书签承前缩放验证的设置方法

目录1，什么是书签承前缩放？2，如何设置书签承前缩放？3，代码3.1书签结构：3.2代码3.3控制台输出：4，书签的xml文件导出4.1代码4.2导出文件：

1，什么是书签承前缩放？

设置了承前缩放，当你手动将page4缩放到145%，然后点击书签1，书签1定位到的page1的缩放比例也是145%

2，如何设置书签承前缩放？

使用工具：

承前缩放书签设置：

其他类型书签设置：

3，代码

3.1 书签结构：

3.2 代码

import com.aspose.pdf.*;

public class bookmark {

public static void main(String[] args) {

// Open document

Document pdfDocument = new Document("D:\\chromeDownload\\测试版2.pdf");

OutlineCollection outlines = pdfDocument.getOutlines();

for (OutlineItemCollection outlineItem : (Iterable) outlines) {

double soureceZoom = -1;

if (outlineItem.getDestination() != null) {

soureceZoom = getAppointmentZoom(outlineItem.getDestination());

} else if (outlineItem.getAction() != null) {

soureceZoom = getAppointmentZoom(outlineItem.getAction());

}

if(soureceZoom == -1){

System.out.println("书签必须承前缩放，书签名：" + outlineItem.getTitle() + "，缩放因子: " + soureceZoom);

// System.out.println("Title : " + outlineItem.getTitle() + "，缩放因子: " + soureceZoom);

if (outlineItem.size()>0){

checkBookmark(outlineItem);

}

}

private static void checkBookmark(OutlineItemCollection Outlines) {

private static double getAppointmentZoom(IAppointment appointment) {

if (appointment instanceof XYZExplicitDestination) {

XYZExplicitDestination destination = (XYZExplicitDestination) appointment;

return destination.getZoom();

} else if (appointment instanceof GoToAction) {

GoToAction goToAction = (GoToAction) appointment;

if (goToAction.getDestination() instanceof XYZExplicitDestination) {

XYZExplicitDestination destination = (XYZEhttp://xplicitDestination) goToAction.getDestination();

return destination.getZoom();

} else if (appointment instanceof GoToRemoteAction) {

GoToRemoteAction goToRemoteAction = (GoToRemoteAction) appointment;

if (goToRemoteAction.getDestination() instanceof XYZExplicitDestination) {

XYZExplicitDestination destination = (XYZExplicitDestination) goToRemoteAction.getDestination();

return -1;

}

3.3 控制台输出：

注意：承前缩放的因子为 0；

4，书签的xml文件导出

4.1 代码

import com.aspose.pdf.Document;

import com.aspose.pdf.facades.PdfBookmarkEditor;

import java.io.FileNotFoundException;

public class AsposeTest {

public static void main(String[] args) throws FileNotFoundException {

Document document6 = new Document("D:\\测试版2.pdf");

exportBookmarksToXML(document6);

}

public static void exportBookmarksToXML(Document document) throws FileNotFoundException {

PdfBookmarkEditor pdfBookmarkEditor = new PdfBookmarkEditor();

pdfBookmarkEditor.bindPdf(document);

pdfBookmarkEditor.exportBookmarksToXML("D:\\测试版2.xml");

pdfBookmarkEditor.getDocument().save();

}

4.2 导出文件：

aspose.pdf 官网指路 ： https://docs.aspose.com/pdf/java/get-update-and-expand-bookmark/

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