如何使用PDFBox获取PDF中书签内容的页码

PDDocument document = PDDocument.load(new File("path/to/your/pdf/file.pdf"));

PDDocumentOutline outline = document.getDocumentCatalog().getDocumentOutline();
if (outline != null) {
    processBookmark(outline, 1); // 从第一页开始遍历书签
}

private void processBookmark(PDOutlineNode bookmark, int pageNum) {
    PDOutlineItem current = bookmark.getFirstChild();
    while (current != null) {
        String title = current.getTitle();
        System.out.println("书签标题：" + title);
        System.out.println("页码：" + pageNum);
        
        PDPageDestination destination = current.getDestination();
        if (destination instanceof PDPageFitDestination) {
            PDPageFitDestination fitDestination = (PDPageFitDestination) destination;
            pageNum = fitDestination.getPageNumber();
        }
        
        processBookmark(current, pageNum); // 递归处理子书签
        current = current.getNextSibling();
    }
}

document.close();