Apache Commons IO仅下载第一个PDF页面

Question

I'm using Java with Apache Commons-IO to download a PDF but I only want to get the first page, is there a way I can do it?

Here's the piece of code that gets the whole doc:

public void getPDF(String route) throws IOException {
    URL url = new URL(route);
    File file = new File("file.pdf");
    FileUtils.copyURLToFile(url, file);
}

Answer 1

In continuation to your code, you may use a new Document to hold only first page of given PDF file.

 URL url = new URL(route);
 File file = new File("file.pdf");
 FileUtils.copyURLToFile(url, file);

 PDDocument pdDoc = PDDocument.load(file);
 PDDocument document = null;

int pageNumberToRead=0;

try {   
    document = new PDDocument();   
    document.addPage((PDPage) pdDoc.getDocumentCatalog().getAllPages().get(pageNumberToRead));   
    document.save("basepath/first_page.pdf");  
    document.close();  
}catch(Exception e){}