react-native-images-to-pdf

Easily generate PDF files from images in React Native.

iOS	Android

Installation

npm install react-native-images-to-pdf

or

yarn add react-native-images-to-pdf

iOS

Run pod install in the ios directory.

Usage

Example using react-native-blob-util

import { createPdf } from 'react-native-images-to-pdf';
import RNBlobUtil from 'react-native-blob-util';

const options = {
  pages: [
    { imagePath: '/path/to/image1.jpg' },
    { imagePath: '/path/to/image2.jpg' }
  ],
  outputPath: `file://${RNBlobUtil.fs.dirs.DocumentDir}/file.pdf`,
};

createPdf(options)
  .then((path) => console.log(`PDF created successfully: ${path}`))
  .catch((error) => console.log(`Failed to create PDF: ${error}`));

This example is using react-native-blob-util to get a valid outputPath, but you can choose any other library to achieve the same functionality.

Example using react-native-document-scanner-plugin

import { createPdf } from 'react-native-images-to-pdf';
import DocumentScanner from 'react-native-document-scanner-plugin';

DocumentScanner.scanDocument()
  .then(({scannedImages}) => {
    if (!scannedImages?.length) {
      throw new Error('No images scanned');
    }

    return createPdf({
      pages: scannedImages.map(imagePath => ({ imagePath })),
      outputPath: `file:///path/to/output/file.pdf`,
    });
  })
  .then(path => console.log(`PDF created successfully: ${path}`))
  .catch(error => console.log(`Failed to create PDF: ${error}`));

API

createPdf(options: CreatePdfOptions) => Promise<string>

Returns a Promise that resolves to a string representing the output path of the generated PDF file.

CreatePdfOptions

Property	Type	Description
pages	Page[]	Pages that should be included in the PDF.
outputPath	string	The path to the output PDF file.

Valid outputPath

Usage	Description	iOS	Android
file:///absolute/path/to/xxx.pdf	Save PDF to local file system.	✓	✓

Page

Property	Type	Required	Default	Description
imagePath	string	✓		Path to the image file.
imageFit	ImageFit		'none'	Image fitting option. Possible values: 'none', 'fill', 'contain', 'cover'.
width	number		Image width	Width of the page in pixels.
height	number		Image height	Height of the page in pixels.
backgroundColor	string		'white'	Background color of the page.

Valid imagePath

Usage	Description	iOS	Android
file:///absolute/path/to/image.xxx	Load image from local file system.	✓	✓
data:image/xxx;base64,iVBORw...	Load image from base64 string.	✓	✓

Example

Check the example folder for a usage demo.

Contributing

See the contributing guide to learn how to contribute to the repository and the development workflow.

License

MIT

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Made with create-react-native-library