Question

我想开发一个功能，以浏览器上传的pdf文件作为书籍格式。任何人都可以建议我如何实现这一目标？我正在尝试使用php，jquery of javascript来实现它。

Answer 1

您可以在以下链接中使用JS https://github.com/mozilla/pdf.js

用法示例

<!doctype html>
<html>

<head>
  <!-- In production, only one script (pdf.js) is necessary -->
  <!-- In production, change the content of PDFJS.workerSrc below -->
  <script type="text/javascript" src="../../src/shared/util.js"></script>
  <script type="text/javascript" src="../../src/shared/colorspace.js"></script>
  <script type="text/javascript" src="../../src/shared/pattern.js"></script>
  <script type="text/javascript" src="../../src/shared/function.js"></script>
  <script type="text/javascript" src="../../src/shared/annotation.js"></script>
  <script type="text/javascript" src="../../src/display/api.js"></script>
  <script type="text/javascript" src="../../src/display/metadata.js"></script>
  <script type="text/javascript" src="../../src/display/canvas.js"></script>
  <script type="text/javascript" src="../../src/display/font_loader.js"></script>

  <script type="text/javascript">
    // Specify the main script used to create a new PDF.JS web worker.
    // In production, leave this undefined or change it to point to the
    // combined `pdf.worker.js` file.
    PDFJS.workerSrc = '../../src/worker_loader.js';
  </script>
  <script type="text/javascript" src="hello.js"></script>
</head>

<body>
  <canvas id="the-canvas" style="border:1px solid black;"/>
</body>

</html>

hello.js - file

//
// Fetch the PDF document from the URL using promises
//
PDFJS.getDocument('helloworld.pdf').then(function(pdf) {
  // Using promise to fetch the page
  pdf.getPage(1).then(function(page) {
    var scale = 1.5;
    var viewport = page.getViewport(scale);

    //
    // Prepare canvas using PDF page dimensions
    //
    var canvas = document.getElementById('the-canvas');
    var context = canvas.getContext('2d');
    canvas.height = viewport.height;
    canvas.width = viewport.width;

    //
    // Render PDF page into canvas context
    //
    var renderContext = {
      canvasContext: context,
      viewport: viewport
    };
    page.render(renderContext);
  });
});

这将帮助您提供附件的直接视图

Answer 2

我试图使用https://github.com/mozilla/pdf.js开发PDF书籍，但没有运气。

我不确定在“viewer.js”文件中我将更改哪些参数以便制作PDF书。我正在制作https://github.com/mozilla/pdf.js/wiki/Setup-PDF.js-in-a-website-%28Windows%29文件。我可以在浏览器中打开PDF，但不能以书本格式打开PDF。

使用fpdf库在php中的pdf书籍阅读器

2 个答案: