html-pdf npm库在windows和ubuntu上提供不同的输出

Question

I'm using https://www.npmjs.com/package/html-pdf library which is based on Phantom JS which internally uses webkit . 我正在使用https://www.npmjs.com/package/html-pdf库，该库基于Phantom JS ，内部使用webkit 。 I'm pasting the dummy HTML & JS code(keep these files in 1 folder) and also attaching the output screenshot. 我正在粘贴虚拟HTML和JS代码（将这些文件保存在1个文件夹中）并附加输出屏幕截图。

The issue I'm facing is that on windows the PDF is generated with some extra space at top(empty space above red) which I can't get rid of . 我面临的问题是， 在Windows上生成的PDF顶部有一些额外的空间（红色以上的空白空间），这是我无法摆脱的 。

Here is a forum(outdated) discussing similar issues, https://groups.google.com/forum/#!topic/phantomjs/YQIyxLWhmr0 . 这是一个讨论类似问题的论坛（过时）， https：//groups.google.com/forum/# ！ topic /phantomjs / YQIyxLWhmr0 。

input.html input.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
</head>

<body>
    <div id="pageHeader" style="border-style: solid;border-width: 2px;color:red;">
        header   <br/> header       <br/> header   <br/> header
    </div>
<div id="pageContent" style="border-style: solid;border-width: 2px;color:green;">
    <div>
        body    <br/> body    <br/> body
    </div>
</div>

JS (You require path, fs, handlebars, html-pdf npm packages) JS （你需要路径，fs，把手，html-pdf npm包）

var path = require('path');
var fs = require('fs');
var handlebars = require('handlebars');
var pdf = require('html-pdf');

saveHtml();

function saveHtml() {

fs.readFile('input.html', 'utf-8', {
    flag: 'w'
}, function(error, source) {
    handlebars.registerHelper('custom_title', function(title) {
        return title;
    })

    var template = handlebars.compile(source);
    var data = {};
    var html = template(data);

    var options = {
        'format': 'A4',
        'base': "file://",
        /* You can give more options like height, width, border */
    };
    pdf.create(html, options).toFile('./output.pdf', function(err, res) {
        if (err) {
            console.log('err pdf');
            return;
        } else {
            console.log('no err pdf');
            return;
        }
    });
});

}

Output on ubuntu 在ubuntu上输出

Output on windows 窗口输出

Extra space at top(empty space above red) in Windows is the issue. Windows中顶部的额外空间（红色上方的空白区域）是个问题。

THINGS that didn't work 1. Adding "border": { "top": "0px" // or mm, cm, in } to options in JS file 那些没有用的东西 1.在JS文件中添加“border”：{“top”：“0px”//或mm，cm，in}

https://www.npmjs.com/package/html-pdf#options https://www.npmjs.com/package/html-pdf#options

Giving fixed "height": "10.5in" & "width": "8in" in options in JS file 在JS文件的选项中给出固定的“高度”：“10.5in”和“width”：“8in”
Making margin-top & padding-top to 0px/-50px to pageHeader div. 将margin-top和padding-top设置为0px / -50px到pageHeader div。
Overriding margin-top & padding of body to 0px/-20px in @media print in bootstrap.css 在bootstrap.css的@media print中覆盖body的top-top和padding到0px / -20px
Giving fixed height to header 给头部固定高度

Any help will be greatly appreciated. 任何帮助将不胜感激。 Thanks. 谢谢。

Answer 1

You can manually set the CSS property to html tag. 您可以手动将CSS属性设置为html标记。 In my case I was having problems developing the template in Windows and deploying it to Linux (Heroku). 在我的情况下，我在Windows中开发模板并将其部署到Linux（Heroku）时遇到问题。

I put zoom: 0.7 in the label html and now both views look the same. 我在标签html中放了zoom: 0.7 ，现在两个视图看起来都一样。

html{zoom: 0.7;}

Answer 2

I was able to get more consistent results by removing the ID's so that it treated everything as content rather than separate header and content areas. 通过删除ID，我能够获得更一致的结果，以便将所有内容视为内容，而不是单独的标题和内容区域。

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
    </head>
    <body>
        <div style="border-style: solid;border-width: 2px;color:red;">
            header
        </div>
        <div style="border-style: solid;border-width: 2px;color:green;">
            <div>
                body
            </div>
        </div>
    </body>
</html>

If you need an ID for styling, use something other than pageHeader / pageFooter to avoid the special treatment associated with those IDs. 如果您需要样式的ID，请使用pageHeader / pageFooter以外的其他内容，以避免与这些ID相关的特殊处理。

Answer 3

Have you tried using a normalize style sheet to compensate for cross platform differences? 您是否尝试使用规范化样式表来弥补跨平台差异？

https://necolas.github.io/normalize.css/ https://necolas.github.io/normalize.css/

html-pdf npm库在windows和ubuntu上提供不同的输出

问题描述

3 个解决方案

解决方案1
9 2016-08-31 00:10:48

解决方案2
1 2016-06-25 02:03:53

解决方案3
0 2016-06-26 04:51:53

html-pdf npm库在windows和ubuntu上提供不同的输出

问题描述

3 个解决方案

解决方案1 9 2016-08-31 00:10:48

解决方案2 1 2016-06-25 02:03:53

解决方案3 0 2016-06-26 04:51:53

解决方案1
9 2016-08-31 00:10:48

解决方案2
1 2016-06-25 02:03:53

解决方案3
0 2016-06-26 04:51:53