使用 html-pdf 节点模块在标题中添加图像 [英] Add image in header using html-pdf node module

问题描述

我正在使用 this 将 html 转换为 PDF.转换非常好.但问题是在 PDF 页面中添加页眉和页脚.在选项中，如果我添加页眉文本，我得到了我预期的结果.

I am using this to convert the html to PDF.The conversions are really good.But the problem is to add header and footer in the PDF pages.In the options if i add the header text i got the result what i expected.

//Options

    var options = {
    "header": {
        "height": "45mm",
        "contents": "<div style='text-align: center;'>Author: Marc Bachmann</div>" // If i add image in content it wont work
    // sample i tried 
      },
      "footer": {
        "height": "28mm",
        "contents": "<span style='color: #444;'>{{page}}</span>/<span>{{pages}}</span>"
      }
    }
// Tried this in contents <img src="image path" />
    var result = <div class="container"> HTML CONTENT</div>';

        pdf.create(result, options).toFile(fileName + ".pdf", function(err, res) {
        if (err) {
        console.error(err);
        callback();
        }

然后，如果我在 header(contents) 选项中添加图像标签，我在生成的 PDF 中没有得到图像.能否请你给我一个解决方案，谢谢.

Then if i add the image tag in the header(contents) option i didn't get the image in the generated PDF. Can you please give me a solution for this thanks.

推荐答案

可以在选项标题中添加图像.1.以display:none"样式在html正文中加载图像.2.然后在选项标题中添加图像通过这样做，图像被缓存，并且可以在标题中附加图像.

It is possible to add the image in options header. 1.Load the image in html body with "display:none" style. 2.Then add the image in the options header By doing this the image is cached and can attach the image in header.

    var options = {
    "format": 'Letter',
    "orientation": "portrait",
    "header": {
    "contents": "<img src='image path' />",
        "height": "30mm"
  },
  "footer": {
    "contents": footer
  }
}
pdf.create("<div style='display:none'><img src='image path' /></div>", options).toFile("sample.pdf", function(err, res) {
        if (err) {
                console.error(err);
                callback();
        } 
});

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