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.NET使用DinkToPdf将HTML转成PDF

2021-02-04 23:14 1251 查看

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>W3Cschoo
1044
l</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);
}