Create PDF using PdfDocument

Create PDF using PdfDocument

android.graphics.pdf.PdfDocument enables generating a PDF document from native Android content. This example show how to create a two page PDF file using PdfDocument, store as "/sdcard/test.pdf". Then use last example Display PDF using PdfRenderer to view it.

(remark: if you use last example to view the PDF file, you have to change targetPdf = "/sdcard/test.pdf".)


MainActivity.java

package com.blogspot.android_er.androidcreatepdf;

import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.pdf.PdfDocument;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

public class MainActivity extends AppCompatActivity {

 Button btnCreate;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);

 btnCreate = (Button)findViewById(R.id.create);
 btnCreate.setOnClickListener(new View.OnClickListener() {
 @Override
 public void onClick(View view) {
 createPdf();
 }
 });

 }

 private void createPdf(){
 // create a new document
 PdfDocument document = new PdfDocument();

 // crate a page description
 PdfDocument.PageInfo pageInfo = 
 new PdfDocument.PageInfo.Builder(100, 100, 1).create();

 // start a page
 PdfDocument.Page page = document.startPage(pageInfo);

 Canvas canvas = page.getCanvas();

 Paint paint = new Paint();
 paint.setColor(Color.RED);

 canvas.drawCircle(50, 50, 30, paint);

 // finish the page
 document.finishPage(page);

 // Create Page 2
 pageInfo = new PdfDocument.PageInfo.Builder(500, 500, 2).create();
 page = document.startPage(pageInfo);
 canvas = page.getCanvas();
 paint = new Paint();
 paint.setColor(Color.BLUE);
 canvas.drawCircle(200, 200, 100, paint);
 document.finishPage(page);

 // write the document content
 String targetPdf = "/sdcard/test.pdf";
 File filePath = new File(targetPdf);
 try {
 document.writeTo(new FileOutputStream(filePath));
 Toast.makeText(this, "Done", Toast.LENGTH_LONG).show();
 } catch (IOException e) {
 e.printStackTrace();
 Toast.makeText(this, "Something wrong: " + e.toString(),
 Toast.LENGTH_LONG).show();
 }

 // close the document
 document.close();
 }
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 
 
 android_id="@+id/activity_main"
 android_layout_width="match_parent"
 android_layout_height="match_parent"
 android_paddingBottom="16dp"
 android_paddingLeft="16dp"
 android_paddingRight="16dp"
 android_paddingTop="16dp"
 android_orientation="vertical"
 tools_context="com.blogspot.android_er.androidcreatepdf.MainActivity">

 <TextView
 android_layout_width="wrap_content"
 android_layout_height="wrap_content"
 android_layout_margin="20dp"
 android_layout_gravity="center_horizontal"
 android_autoLink="web"
 android_text="http://android-er.blogspot.com/"
 android_textStyle="bold"/>

 <Button
 android_id="@+id/create"
 android_layout_width="match_parent"
 android_layout_height="wrap_content"
 android_text="Create PDF"/>
</LinearLayout>

uses-permission of "android.permission.WRITE_EXTERNAL_STORAGE" is needed in AndroidManifest.xml.

<?xml version="1.0" encoding="utf-8"?>
<manifest 
 package="com.blogspot.android_er.androidcreatepdf">

 <application
 android_allowBackup="true"
 android_icon="@mipmap/ic_launcher"
 android_label="@string/app_name"
 android_supportsRtl="true"
 android_theme="@style/AppTheme">
 <activity android_name=".MainActivity">
 <intent-filter>
 <action android_name="android.intent.action.MAIN" />

 <category android_name="android.intent.category.LAUNCHER" />
 </intent-filter>
 </activity>
 </application>
 <uses-permission android_name="android.permission.WRITE_EXTERNAL_STORAGE"/>

</manifest>

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