/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.pdfbox.examples.interactive.form;
import java.io.File;
import java.io.IOException;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.interactive.action.PDActionJavaScript;
/**
* Update field automatically when the document is opened.
*
* This sample adds document action to automatically update a
* field value with the current date when the document is opened.
*
* This sample builds on the form generated by @link CreateSimpleForm so you need to run that first.
*
*/
public final class UpdateFieldOnDocumentOpen
{
private UpdateFieldOnDocumentOpen()
{
}
public static void main(String[] args) throws IOException
{
// Load the PDF document created by SimpleForm.java
try (PDDocument document = PDDocument.load(new File("target/SimpleForm.pdf")))
{
// Note that the JavaScript will depend on the reader application.
// The classes and methods available to Adobe Reader and Adobe Acrobat
// are documented in the Acrobat SDK.
String javaScript = "var now = util.printd('yyyy-mm-dd', new Date());"
+ "var oField = this.getField('SampleField');"
+ "oField.value = now;";
// Create an action as JavaScript action
PDActionJavaScript jsAction = new PDActionJavaScript();
jsAction.setAction(javaScript);
// Set the action to be executed when the document is opened
document.getDocumentCatalog().setOpenAction(jsAction);
document.save("target/UpdateFieldOnDocumentOpen.pdf");
}
}
}