c#/vb.net 从 url 地址下载 pdf 文档-ag凯发旗舰厅

本文介绍如何使用spire.pdf从url地址中下载pdf文档。

using system.io;
using system.net;
using spire.pdf;
namespace downloadpdffromurl
{
    class program
    {
        static void main(string[] args)
        {
            //创建pdfdocument对象
            pdfdocument doc = new pdfdocument();
            //创建webclient对象
            webclient webclient = new webclient();
            //从url地址下载pdf数据，并保存为流
            using (memorystream ms = new memorystream(webclient.downloaddata("http://www.e-iceblue.com/images/sample.pdf")))
            {
                //加载流
                doc.loadfromstream(ms);
            }
            //保存为pdf文档
            doc.savetofile("result.pdf", fileformat.pdf);
        }
    }
}

imports system.io
imports system.net
imports spire.pdf
namespace downloadpdffromurl
    class program
        shared  sub main(byval args() as string)
            '创建pdfdocument对象
            dim doc as pdfdocument = new pdfdocument()
 
            '创建webclient对象
            dim webclient as webclient = new webclient()
 
            '从url地址下载pdf数据，并保存为流
            imports(memorystream ms = new memorystream(webclient.downloaddata("http:'www.e-iceblue.com/images/sample.pdf")))
            {
                '加载流
                doc.loadfromstream(ms)
            }
 
            '保存为pdf文档
            doc.savetofile("result.pdf", fileformat.pdf)
        end sub
    end class
end namespace