https://github.com/mooz/node-pdf-image

Provides an interface to convert PDF's pages to png files in Node.js by using ImageMagick
https://github.com/mooz/node-pdf-image

Last synced: about 1 month ago
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Provides an interface to convert PDF's pages to png files in Node.js by using ImageMagick

• Host: GitHub
• URL: https://github.com/mooz/node-pdf-image
• Owner: mooz
• License: mit
• Archived: true
• Created: 2014-11-05T16:55:58.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2020-03-20T18:33:20.000Z (over 4 years ago)
• Last Synced: 2024-06-18T12:44:29.270Z (3 months ago)
• Language: JavaScript
• Size: 41 KB
• Stars: 236
• Watchers: 11
• Forks: 87
• Open Issues: 37
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# pdf-image

Provides an interface to convert PDF's pages to png files in Node.js

by using ImageMagick.

## Installation

    npm install pdf-image

Ensure you have `convert`, `gs`, and `pdfinfo` (part of poppler) commands.

### Ubuntu

    sudo apt-get install imagemagick ghostscript poppler-utils

### OSX (Yosemite)

    brew install imagemagick ghostscript poppler

## Usage

#### Convert single page:

```javascript

var PDFImage = require("pdf-image").PDFImage;

var pdfImage = new PDFImage("/tmp/slide.pdf");

pdfImage.convertPage(0).then(function (imagePath) {

  // 0-th page (first page) of the slide.pdf is available as slide-0.png

  fs.existsSync("/tmp/slide-0.png") // => true

});

```

#### Convert full file

```javascript

var PDFImage = require("pdf-image").PDFImage;

var pdfImage = new PDFImage("/tmp/slide.pdf");

pdfImage.convertFile().then(function (imagePaths) {

  // [ /tmp/slide-0.png, /tmp/slide-1.png ]

});

```

#### Convert full file and merge result into single image

```javascript

var PDFImage = require("pdf-image").PDFImage;

var pdfImage = new PDFImage("/tmp/slide.pdf", {

  combinedImage: true

});

pdfImage.convertFile().then(function (imagePaths) {

   // /tmp/slide.png 

});

```

## Express

Following example shows an example of pdf-image in Express, which gives

URLs for each pages of a PDF like

`http://example.com:3000/tmp/slide.pdf/0.png`.

```javascript

  app.get(/(.*\.pdf)\/([0-9]+).png$/i, function (req, res) {

    var pdfPath = req.params[0];

    var pageNumber = req.params[1];

    var PDFImage = require("pdf-image").PDFImage;

    var pdfImage = new PDFImage(pdfPath);

    pdfImage.convertPage(pageNumber).then(function (imagePath) {

      res.sendFile(imagePath);

    }, function (err) {

      res.send(err, 500);

    });

  });

```

## Options

Following example shows an example of how to add imagemagick command-line options (you can find the complete list here -> http://www.imagemagick.org/script/convert.php):

```javascript

var pdfImage = new PDFImage(pdfPath, {

  convertOptions: {

    "-resize": "2000x2000",

    "-quality": "75"

  }

});

```