@brunofrancadasilva/pdf2pic

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.