pdf2pic

Forked from: https://github.com/yakovmeister/pdf2image

A utility for converting pdf to image, base64 or buffer format.

IMPORTANT NOTE: Please support this library by donating to the owner via PayPal, your help is much appreciated. Contributors are also welcome!

Prerequisites

• node >= 14.x
• graphicsmagick
• ghostscript

Don't have graphicsmagick and ghostscript yet?

Follow this guide to install the required dependencies.

Installation

npm install --save pdf2pic

Usage

Converting specific page of PDF from path, then saving as image file

import { fromPath } from "pdf2pic";

const options = {
  density: 100,
  saveFilename: "untitled",
  savePath: "./images",
  format: "png",
  width: 600,
  height: 600,
  ignoreAspectRatio: false
};
const convert = fromPath("/path/to/pdf/sample.pdf", options);
const pageToConvertAsImage = 1;

convert(pageToConvertAsImage, { responseType: "image" })
  .then((resolve) => {
    console.log("Page 1 is now converted as image");

    return resolve;
  });

pdf2pic API

• fromPath(filePath, options)
• fromBuffer(buffer, options)
• fromBase64(b64string, options)

fromPath(filePath, options)

Initialize PDF to image conversion by supplying a file path

Functions

Convert a specific page of the PDF to Image/Base64/Buffer by supplying a file path

fromPath(filePath, options)(page, convertOptions)

• filePath - pdf file's path
• options - see options.
• page - page number to convert to an image
• convertOptions - see convertOptions.

Converts PDF to Image/Base64/Buffer by supplying a file path

fromPath(filePath, options).bulk(pages, convertOptions)

• filePath - pdf file's path
• options - see options.
• pages - page numbers to convert to image
  • set pages to -1 to convert all pages
  • pages also accepts an array indicating the page number e.g. [1,2,3]
  • also accepts number e.g. 1
• convertOptions - see convertOptions

Set GraphicsMagick's subclass or path

fromPath(filePath, options).setGMClass(subClass)

NOTE: should be called before calling convert() or bulk().

• filePath - pdf file's path
• options - see options.
• subClass - path to gm binary or set to true to use imagemagick
  • set subClass to true to use imagemagick
  • supply a valid path as subClass to locate gm path specified

fromBuffer(buffer, options)

Initialize PDF to image conversion by supplying a PDF buffer

Functions

Convert a specific page of the PDF to Image/Base64/Buffer by supplying a buffer

fromBuffer(buffer, options)(page, convertOptions)

Functions same as fromPath(filePath, options)(page, convertOptions) only input is changed

Converts PDF to Image/Base64/Buffer by supplying a buffer:

fromBuffer(buffer, options).bulk(pages, convertOptions)

Functions same as fromPath(filePath, options).bulk(pages, convertOptions) only input is changed

Set GraphicsMagick's subclass or path:

fromBuffer(buffer, options).setGMClass(subClass)

Functions same as fromPath(filePath, options).setGMClass(subClass) only input is changed

fromBase64(b64string, options)

Initialize PDF to image conversion by supplying a PDF base64 string.

Functions

Convert a specific page of the PDF to Image/Base64/Buffer by supplying a base64 string:

fromBase64(b64string, options)(page, convertOptions)

Functions same as fromPath(filePath, options)(page, convertOptions) only input is changed.

Converts PDF to Image/Base64/Buffer by supplying a base64 string:

fromBase64(b64string, options).bulk(pages, convertOptions)

Functions same as fromPath(filePath, options).bulk(pages, convertOptions) only input is changed.

Set GraphicsMagick's subclass or path:

fromBase64(b64string, options).setGMClass(subClass)

Functions same as fromPath(filePath, options).setGMClass(subClass) only input is changed.

options

Following are the options that can be passed on the pdf2pic api:

| option | default value | description | |--------------|--------------- |------------------------------| | quality | 0 | Image compression level. Value depends on format, usually from 0 to 100 (more info) | | format | 'png' | Formatted image characteristics / image format (image characteristics, image format) | | width | 768 | Output width | | height | 512 | Output height | | density | 72 | Output DPI (dots per inch) (more info) | | savePath | './' | Path where to save the output | | saveFilename | 'untitled' | Output filename | | ignoreAspectRatio | false | If gm should ignore output aspect ratio | | compression | 'jpeg' | Compression method (more info) |

convertOptions

| option | default value | description | |--------------|---------------|-------------| | responseType | image | Response type of the output. Accepts: image, base64 or buffer |

The parameter can also be a boolean, if true then the response type will be base64 and if false then the response type will be image. This is deprecated and will be removed in the next major version.

License

pdf2pic is MIT licensed.