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Add Java sample for PAdES policy-based signatures #128

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160 changes: 160 additions & 0 deletions Security/AddPAdESPolicySignature/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.datalogics.pdfl.samples</groupId>
<artifactId>AddPAdESPolicySignature</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<profiles>
<profile>
<id>Windows64</id>
<activation>
<os>
<family>windows</family>
<arch>amd64</arch>
</os>
</activation>
<properties>
<jni.classifier>win-x86-64-jni</jni.classifier>
</properties>
</profile>
<profile>
<id>MacArm</id>
<activation>
<os>
<family>mac</family>
<arch>aarch64</arch>
</os>
</activation>
<properties>
<jni.classifier>mac-arm-64-jni</jni.classifier>
</properties>
</profile>
<profile>
<id>Linux64</id>
<activation>
<os>
<!-- Use OS <name> instead of <family> because the "unix" <family> also includes Mac -->
<name>Linux</name>
<arch>amd64</arch>
</os>
</activation>
<properties>
<jni.classifier>linux-x86-64-jni</jni.classifier>
</properties>
</profile>
</profiles>
<dependencies>
<dependency>
<groupId>com.datalogics.pdfl</groupId>
<artifactId>pdfl</artifactId>
<version>LATEST</version>
<type>pom</type>
</dependency>
<dependency>
<groupId>com.datalogics.pdfl</groupId>
<artifactId>pdfl</artifactId>
<version>LATEST</version>
</dependency>
<dependency>
<groupId>com.datalogics.pdfl</groupId>
<artifactId>pdfl</artifactId>
<version>LATEST</version>
<type>zip</type>
<classifier>${jni.classifier}</classifier>
</dependency>
<dependency>
<groupId>com.datalogics.pdfl</groupId>
<artifactId>pdfl</artifactId>
<version>LATEST</version>
<type>zip</type>
<classifier>resources</classifier>
</dependency>
<dependency>
<groupId>com.datalogics.pdfl</groupId>
<artifactId>pdfl</artifactId>
<version>LATEST</version>
<classifier>javadoc</classifier>
</dependency>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>3.0.2</version>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>unpack-resources</id>
<phase>generate-resources</phase>
<goals>
<goal>unpack</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>com.datalogics.pdfl</groupId>
<artifactId>pdfl</artifactId>
<classifier>resources</classifier>
<type>zip</type>
<outputDirectory>${project.build.directory}/lib/Resources</outputDirectory>
</artifactItem>
</artifactItems>
</configuration>
</execution>
<execution>
<id>unpack-jni</id>
<phase>generate-resources</phase>
<goals>
<goal>unpack</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>com.datalogics.pdfl</groupId>
<artifactId>pdfl</artifactId>
<classifier>${jni.classifier}</classifier>
<type>zip</type>
<outputDirectory>${project.build.directory}/lib</outputDirectory>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<mainClass>com.datalogics.pdfl.samples.AddPAdESPolicySignature</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
</plugin>
</plugins>
</build>
</project>
87 changes: 87 additions & 0 deletions ...dESPolicySignature/src/main/java/com/datalogics/pdfl/samples/AddPAdESPolicySignature.java
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/*
*
* This sample program demonstrates the use of AddDigitalSignature for PAdES
* (PDF Advanced Electronic Signatures) with an explicit signature policy.
* PAdES policy signatures (EPES) conform to the ETSI EN 319 142 standard,
* use the ETSI.CAdES.detached SubFilter, and embed one or more signature
* policy identifiers along with optional policy qualifiers.
*
* Copyright (c) 2026, Datalogics, Inc. All rights reserved.
*
*/

package com.datalogics.pdfl.samples;

import com.datalogics.PDFL.*;

public class AddPAdESPolicySignature {

public static void main(String [] args) throws Exception {
System.out.println("AddPAdESPolicySignature sample:");

Library lib = new Library();
try {
String sInput = Library.getResourceDirectory() + "Sample_Input/SixPages.pdf";
String sLogo = Library.getResourceDirectory() + "Sample_Input/ducky_alpha.tif";
String sOutput = "PAdESPolicySignature-out.pdf";

String sPEMCert = Library.getResourceDirectory() + "Sample_Input/Credentials/PEM/ecSecP521r1Cert.pem";
String sPEMKey = Library.getResourceDirectory() + "Sample_Input/Credentials/PEM/ecSecP521r1Key.pem";

if (args.length > 0)
sInput = args[0];

if (args.length > 1)
sOutput = args[1];

if (args.length > 2)
sLogo = args[2];

System.out.println("Applying a PAdES policy digital signature to " + sInput + " with a logo " + sLogo + " and saving it as " + sOutput);

Document doc = new Document(sInput);

SignDoc sigDoc = new SignDoc();

// Setup Sign params
sigDoc.setFieldID(SignatureFieldID.CREATE_FIELD_WITH_QUALIFIED_NAME);
sigDoc.setFieldName("Signature_es_:signatureblock");

// Set credential related attributes
// PAdES signatures use SHA-384 digest with EC credentials
sigDoc.setDigestCategory(DigestCategory.SHA_384);
sigDoc.setCredentialDataFormat(CredentialDataFmt.NON_PFX);
sigDoc.setNonPfxSignerCert(sPEMCert, 0, CredentialStorageFmt.ON_DISK);
sigDoc.setNonPfxPrivateKey(sPEMKey, 0, CredentialStorageFmt.ON_DISK);

// Set the signature type to PAdES (PDF Advanced Electronic Signatures).
// NOTE: Signature type must be set prior to adding policies.
sigDoc.setDocSignType(SignatureType.PADES);

// Define a signature policy (SigPolicyId) using an OID.
sigDoc.addSigPolicy("2.16.724.1.3.1.1.2.1.9");

// Add a policy qualifier (SPuri) pointing to the policy specification document.
sigDoc.addSigPolicyQualifierURI(
"https://sede.administracion.gob.es/politica_de_firma_anexo_1.pdf");

// Setup the signer information
// (Logo image is optional)
sigDoc.setSignerInfo(sLogo, 0.5F, "John Doe", "Chicago, IL", "Approval", "Datalogics, Inc.", DisplayTraits.KDISPLAY_ALL);

// Set the size and location of the signature box (optional)
// If not set, invisible signature will be placed on first page
sigDoc.setSignatureBoxPageNumber(0);
sigDoc.setSignatureBoxRectangle(new Rect(100, 300, 400, 400));

// Setup Save params
sigDoc.setOutputPath(sOutput);

// Finally, sign and save the document
sigDoc.addDigitalSignature(doc);
}
finally {
lib.delete();
}
}
}
3 changes: 3 additions & 0 deletions Security/README.md
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## ***AddBasicPAdESElectronicSignature***
Demonstrates adding a PAdES B-T baseline electronic signature to a PDF document.

## ***AddPAdESPolicySignature***
Demonstrates adding a PAdES B-T policy-based signature to a PDF document.

## ***AddDigitalSignatureCMS***
Demonstrates adding a digital signature with a logo to a PDF document.

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1 change: 1 addition & 0 deletions tasks.py
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'Other/MemoryFileSystem/',
'Other/StreamIO/',
'Security/AddBasicPAdESElectronicSignature/',
'Security/AddPAdESPolicySignature/',
'Security/AddDigitalSignatureCMS/',
'Security/AddDigitalSignatureRFC3161/',
'Security/AddRegexRedaction/',
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