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react-native-trustee-pdf

npm

A react native PDF view component (cross-platform support)

Feature

  • read a PDF from url, blob, local file or asset and can cache it.
  • display horizontally or vertically
  • drag and zoom
  • double tap for zoom
  • support password protected pdf
  • jump to a specific page in the pdf

🚨 Expo: This package is not available in the Expo Go app. Learn how you can use this package in Custom Dev Clients via the out-of-tree Expo Config Plugin. Example: with-pdf.

Installation

# Using npm
npm install react-native-trustee-pdf --save

# or using yarn:
yarn add react-native-trustee-pdf

Then follow the instructions for your platform to link react-native-pdf into your project:

iOS installation

iOS details

React Native 0.60 and above

Run pod install in the ios directory. Linking is not required in React Native 0.60 and above.

React Native 0.59 and below

react-native link react-native-trustee-pdf

Android installation

Android details

If you use RN 0.59.0 and above, please add following to your android/app/build.gradle**

android {

+    packagingOptions {
+       pickFirst 'lib/x86/libc++_shared.so'
+       pickFirst 'lib/x86_64/libjsc.so'
+       pickFirst 'lib/arm64-v8a/libjsc.so'
+       pickFirst 'lib/arm64-v8a/libc++_shared.so'
+       pickFirst 'lib/x86_64/libc++_shared.so'
+       pickFirst 'lib/armeabi-v7a/libc++_shared.so'
+     }

   }

React Native 0.59.0 and below

react-native link react-native-trustee-pdf

Windows installation

Windows details
  • Open your solution in Visual Studio 2019 (eg. windows\yourapp.sln)
  • Right-click Solution icon in Solution Explorer > Add > Existing Project...
  • If running RNW 0.62: add node_modules\react-native-pdf\windows\RCTPdf\RCTPdf.vcxproj
  • If running RNW 0.62: add node_modules\react-native-blob-util\windows\ReactNativeBlobUtil\ReactNativeBlobUtil.vcxproj
  • Right-click main application project > Add > Reference...
  • Select progress-view and in Solution Projects
    • If running 0.62, also select RCTPdf and ReactNativeBlobUtil
  • In app pch.h add #include "winrt/RCTPdf.h"
    • If running 0.62, also select #include "winrt/ReactNativeBlobUtil.h"
  • In App.cpp add PackageProviders().Append(winrt::progress_view::ReactPackageProvider()); before InitializeComponent();
    • If running RNW 0.62, also add PackageProviders().Append(winrt::RCTPdf::ReactPackageProvider()); and PackageProviders().Append(winrt::ReactNativeBlobUtil::ReactPackageProvider());

Bundling PDFs with the app

To add a test.pdf like in the example add:

<None Include="..\..\test.pdf">
  <DeploymentContent>true</DeploymentContent>
</None>

in the app .vcxproj file, before <None Include="packages.config" />.

FAQ

FAQ details

Q1. After installation and running, I can not see the pdf file.
A1: maybe you forgot to excute react-native link or it does not run correctly. You can add it manually. For detail you can see the issue #24 and #2

Q2. When running, it shows 'Pdf' has no propType for native prop RCTPdf.acessibilityLabel of native type 'String'
A2. Your react-native version is too old, please upgrade it to 0.47.0+ see also #39

Q3. When I run the example app I get a white/gray screen / the loading bar isn't progressing .
A3. Check your uri, if you hit a pdf that is hosted on a http you will need to do the following:

iOS: add an exception for the server hosting the pdf in the ios info.plist. Here is an example :

<key>NSAppTransportSecurity</key>
<dict>
  <key>NSExceptionDomains</key>
  <dict>
    <key>yourserver.com</key>
    <dict>
      <!--Include to allow subdomains-->
      <key>NSIncludesSubdomains</key>
      <true/>
      <!--Include to allow HTTP requests-->
      <key>NSTemporaryExceptionAllowsInsecureHTTPLoads</key>
      <true/>
      <!--Include to specify minimum TLS version-->
      <key>NSTemporaryExceptionMinimumTLSVersion</key>
      <string>TLSv1.1</string>
    </dict>
  </dict>
</dict>

Android: see here

Q4. why doesn't it work with react native expo?.
A4. Expo does not support native module. you can read more expo caveats here

Q5. Why can't I run the iOS example? 'Failed to build iOS project. We ran "xcodebuild" command but it exited with error code 65.'
A5. Run the following commands in the project folder (e.g. react-native-trustee-pdf/example) to ensure that all dependencies are available:

yarn install (or npm install)
cd ios
pod install
cd ..
react-native run-ios

Example

import React from 'react';
import { StyleSheet, Dimensions, View } from 'react-native';
import Pdf from 'react-native-trustee-pdf';

export default class PDFExample extends React.Component {
    render() {
        const source = {uri:"data:application/pdf;base64,JVBERi0xLjcKJc..."};

        //const source = require('./test.pdf');  // ios only
        //const source = {uri:'bundle-assets://test.pdf' };
        //const source = {uri:'file:///sdcard/test.pdf'};

        return (
            <View style={styles.container}>
                <Pdf
                    source={source}
                    onLoadComplete={(numberOfPages,filePath) => {
                        console.log(`Number of pages: ${numberOfPages}`);
                    }}
                    onPageChanged={(page,numberOfPages) => {
                        console.log(`Current page: ${page}`);
                    }}
                    onError={(error) => {
                        console.log(error);
                    }}
                    onPressLink={(uri) => {
                        console.log(`Link pressed: ${uri}`);
                    }}
                    style={styles.pdf}/>
            </View>
        )
    }
}

const styles = StyleSheet.create({
    container: {
        flex: 1,
        justifyContent: 'flex-start',
        alignItems: 'center',
        marginTop: 25,
    },
    pdf: {
        flex:1,
        width:Dimensions.get('window').width,
        height:Dimensions.get('window').height,
    }
});

Configuration

Property Type Default Description iOS Android Windows FirstRelease
source object not null PDF source like {uri:xxx, cache:false}. see the following for detail. βœ” βœ” βœ” <3.0
page number 1 initial page index βœ” βœ” βœ” <3.0
scale number 1.0 should minScale<=scale<=maxScale βœ” βœ” βœ” <3.0
minScale number 1.0 min scale βœ” βœ” βœ” 5.0.5
maxScale number 3.0 max scale βœ” βœ” βœ” 5.0.5
horizontal bool false draw page direction, if you want to listen the orientation change, you can use [react-native-orientation-locker] βœ” βœ” βœ” <3.0
showsHorizontalScrollIndicator bool true shows or hides the horizontal scroll bar indicator on iOS βœ” 6.6
showsVerticalScrollIndicator bool true shows or hides the vertical scroll bar indicator on iOS βœ” 6.6
fitWidth bool false if true fit the width of view, can not use fitWidth=true together with scale βœ” βœ” βœ” <3.0, abandoned from 3.0
fitPolicy number 2 0:fit width, 1:fit height, 2:fit both(default) βœ” βœ” βœ” 3.0
spacing number 10 the breaker size between pages βœ” βœ” βœ” <3.0
password string "" pdf password, if password error, will call OnError() with message "Password required or incorrect password." βœ” βœ” βœ” <3.0
style object {backgroundColor:"#eee"} support normal view style, you can use this to set border/spacing color... βœ” βœ” βœ” <3.0
renderActivityIndicator (progress) => Component when loading show it as an indicator, you can use your component βœ” βœ” βœ– <3.0
enableAntialiasing bool true improve rendering a little bit on low-res screens, but maybe course some problem on Android 4.4, so add a switch βœ– βœ” βœ– <3.0
enablePaging bool false only show one page in screen βœ” βœ” βœ” 5.0.1
enableRTL bool false scroll page as "page3, page2, page1" βœ” βœ– βœ” 5.0.1
enableAnnotationRendering bool true enable rendering annotation, notice:iOS only support initial setting,not support realtime changing βœ” βœ” βœ– 5.0.3
trustAllCerts bool true Allow connections to servers with self-signed certification βœ” βœ” βœ– 6.0.?
singlePage bool false Only show first page, useful for thumbnail views βœ” βœ” βœ” 6.2.1
onLoadProgress function(percent) null callback when loading, return loading progress (0-1) βœ” βœ” βœ– <3.0
onLoadComplete function(numberOfPages, path, {width, height}, tableContents) null callback when pdf load completed, return total page count, pdf local/cache path, {width,height} and table of contents βœ” βœ” βœ” but without tableContents <3.0
onPageChanged function(page,numberOfPages) null callback when page changed ,return current page and total page count βœ” βœ” βœ” <3.0
onError function(error) null callback when error happened βœ” βœ” βœ” <3.0
onPageSingleTap function(page) null callback when page was single tapped βœ” βœ” βœ” 3.0
onScaleChanged function(scale) null callback when scale page βœ” βœ” βœ” 3.0
onPressLink function(uri) null callback when link tapped βœ” βœ” βœ– 6.0.0

parameters of source

parameter Description default iOS Android Windows
uri pdf source, see the forllowing for detail. required βœ” βœ” βœ”
cache use cache or not false βœ” βœ” βœ–
cacheFileName specific file name for cached pdf file SHA1(uri) result βœ” βœ” βœ–
expiration cache file expired seconds (0 is not expired) 0 βœ” βœ” βœ–
method request method when uri is a url "GET" βœ” βœ” βœ–
headers request headers when uri is a url {} βœ” βœ” βœ–

types of source.uri

Usage Description iOS Android Windows
{require("./test.pdf")} load pdf relate to js file (do not need add by xcode) βœ” βœ– βœ–
{uri:"bundle-assets://path/to/xxx.pdf"} load pdf from assets, the file should be at android/app/src/main/assets/path/to/xxx.pdf βœ– βœ” βœ–
{uri:"bundle-assets://xxx.pdf"} load pdf from assets, you must add pdf to project by xcode. this does not support folder. βœ” βœ– βœ–
{uri:"data:application/pdf;base64,JVBERi0xLjcKJc..."} load pdf from base64 string βœ” βœ” βœ”
{uri:"file:///absolute/path/to/xxx.pdf"} load pdf from local file system βœ” βœ” βœ”
{uri:"ms-appx:///xxx.pdf"}} load pdf bundled with UWP app βœ– βœ– βœ”

*) requires building React Native from source with this patch

Methods

Methods operate on a ref to the PDF element. You can get a ref with the following code:

return (
  <Pdf
    ref={(pdf) => { this.pdf = pdf; }}
    source={source}
    ...
  />
);

setPage()

setPage(pageNumber)

Set the current page of the PDF component. pageNumber is a positive integer. If pageNumber > numberOfPages, current page is not changed.

Example:

this.pdf.setPage(42); // Display the answer to the Ultimate Question of Life, the Universe, and Everything

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A <Pdf /> component for react-native

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