dreamjob0415 / pdf2image

A utility for converting pdf to image and base64 format.

PDF2Pic

A utility for converting pdf to image and base64 format.

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

Prerequisite

• node >= 12.x
• graphicsmagick
• ghostscript

Don't have graphicsmagick and ghostscript yet?

Follow this guide to install the required dependencies.

Installation

npm install -S 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
};
const storeAsImage = fromPath("/path/to/pdf/sample.pdf", options);
const pageToConvertAsImage = 1;

storeAsImage(pageToConvertAsImage).then((resolve) => {
  console.log("Page 1 is now converted as image");

  return resolve;
});

Nuff talk, show me how:

More usage example can be found here.

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 by supplying a file path

fromPath(filePath, options)(page, isBase64)

• filePath - pdf file's path
• options - see options.
• page - page number to convert to an image
• isBase64 - if true, convert() will return base64 output instead

---

Converts PDF to Image/Base64 by supplying a file path

fromPath(filePath, options).bulk(pages, isBase64)

• 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
• isBase64 - if true, bulk() will return an array of base64 output instead

---

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 by supplying a buffer

fromBuffer(buffer, options)(page, isBase64)

Functions same as fromPath(filePath, options)(page, isBase64) only input is changed

---

Converts PDF to Image/Base64 by supplying a buffer

fromBuffer(buffer, options).bulk(pages, isBase64)

Functions same as fromPath(filePath, options).bulk(pages, isBase64) 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 by supplying a base64 string

fromBase64(b64string, options)(page, isBase64)

Functions same as fromPath(filePath, options)(page, isBase64) only input is changed

---

Converts PDF to Image/Base64 by supplying a base64 string

fromBase64(b64string, options).bulk(pages, isBase64)

Functions same as fromPath(filePath, options).bulk(pages, isBase64) 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
compression	'jpeg'	Compression method (more info)

Contributing

• Fork it (https://github.com/yakovmeister/pdf2image/fork)
• Create your feature branch (git checkout -b feature/make-maintainer-cry)
• Commit your changes (git commit -am 'feature: make maintainer cry by running git rm -rf')
• Push to the branch (git push origin feature/make-maintainer-cry)
• Create a new PR

License

pdf2pic is MIT licensed.