.NET使用DinkToPdf将HTML转成PDF_其他

0.介绍

C# .NET Core wrapper for wkhtmltopdf library that uses Webkit engine to convert HTML pages to PDF.

最近浏览文章的时候发现DinkToPdf框架，可以利用HTML转换成PDF，与我早期使用ITextSharp 框架构建PDF的方式不太一样。DinkToPdf直接将HTML转成PDF，HTML的构造直观且简单。这种方式可能可以成为不错的选择！
下面为大家简单介绍DinkToPdf的使用方式。

1. 参考资料

Github https://github.com/rdvojmoc/DinkToPdf

2.核心内容

构造HtmlToPdfDocument对象

Html文本形式

string html = @"<!DOCTYPE html>
<html>
<head> 
<meta charset='utf-8'> 
<title>W3Cschool</title> 
</head>
<body>

<h4>Html文本</h4>

</body>
</html>";

var doc = new HtmlToPdfDocument()
{
    GlobalSettings = {
        ColorMode = ColorMode.Color,
        Orientation = Orientation.Landscape,
        PaperSize = PaperKind.A4,
    },
    Objects = {
        new ObjectSettings() {
            PagesCount = true,
            HtmlContent = htmlContent,
            WebSettings = { DefaultEncoding = "utf-8" },
            HeaderSettings = { FontSize = 9, Right = "Page [page] of [toPage]", Line = true },
            FooterSettings = { FontSize = 9, Right = "Page [page] of [toPage]" }
        }
    }
};

URL方式

    
string url = ""https://www.baidu.com/";
var doc = new HtmlToPdfDocument()
{
    GlobalSettings = {
        PaperSize = PaperKind.A4Small
    },

    Objects = {
        new ObjectSettings()
        {
            Page = url,
        }
    }
};

HtmlToPdfDocument 转成 PDF

var converter = new BasicConverter(new PdfTools());

byte[] pdf = converter.Convert(doc);

生成PDF

if (!Directory.Exists("Files"))
{
    Directory.CreateDirectory("Files");
}

using (FileStream stream = new FileStream(@"Files\" + DateTime.UtcNow.Ticks.ToString() + ".pdf", FileMode.Create))
{
    stream.Write(pdf, 0, pdf.Length);
}