c#/vb.net 将多个图像转换为单个 pdf-凯发线上登陆下载网址

pm> install-package spire.pdf

using spire.pdf;
using spire.pdf.graphics;
using system.drawing;
using system.io;
namespace convertmultipleimagesintopdf
{
    class program
    {
        static void main(string[] args)
        {
            //创建pdfdocument对象
            pdfdocument doc = new pdfdocument();
            //将页边距设置为零
            doc.pagesettings.setmargins(0);
            //获取存储图像的文件夹
            directoryinfo folder = new directoryinfo(@"c:\users\administrator\desktop\图片");
            //遍历文件夹中的文件
            foreach (fileinfo file in folder.getfiles())
            {
                //加载特定图像
                image image = image.fromfile(file.fullname);
                //获取图像宽度和高度
                float width = image.physicaldimension.width;
                float height = image.physicaldimension.height;
                //添加与图像大小相同的页面
                pdfpagebase page = doc.pages.add(new sizef(width, height));
                //基于图像创建pdfimage对象
                pdfimage pdfimage = pdfimage.fromimage(image);
                //在页面的（0，0）处绘制图像
                page.canvas.drawimage(pdfimage, 0, 0, pdfimage.width, pdfimage.height);
            }
            //保存文件
            doc.savetofile("结果文档.pdf");
            doc.dispose();
        }
    }
}

imports spire.pdf
imports spire.pdf.graphics
imports system.drawing
imports system.io
namespace convertmultipleimagesintopdf
    friend class program
        private shared sub main(byval args as string())
            '创建pdfdocument对象
            dim doc as pdfdocument = new pdfdocument()
            '将页边距设置为零
            doc.pagesettings.setmargins(0)
            '获取存储图像的文件夹
            dim folder as directoryinfo = new directoryinfo("c:\users\administrator\desktop\图片")
            '遍历文件夹中的文件
            for each file in folder.getfiles()
                '加载特定图像
                dim image as image = image.fromfile(file.fullname)
                '获取图像宽度和高度
                dim width as single = image.physicaldimension.width
                dim height as single = image.physicaldimension.height
                '添加与图像大小相同的页面
                dim page as pdfpagebase = doc.pages.add(new sizef(width, height))
                '基于图像创建pdfimage对象
                dim pdfimage as pdfimage = pdfimage.fromimage(image)
                '在页面的（0，0）处绘制图像
                page.canvas.drawimage(pdfimage, 0, 0, pdfimage.width, pdfimage.height)
            next
            '保存文件
            doc.savetofile("结果文档.pdf")
            doc.dispose()
        end sub
    end class
end namespace