Signing PDF documents with iText

Once installed and configured, you can integrate the Signing Automation Client with a signing application. For example, you can run the signature samples provided with the iText library for Java.

To run the iText signature samples

1. Configure a service subscription as explained in Managing tokens with Entrust Certificate Services cloud.

2. On your computer, install:

   • The PKCS #11 library, as explained in Installing the PKCS #11 library with the Signing Automation Client.

   • Oracle JDK 8

   • The Eclipse IDE

3. Open a web browser in https://github.com/itext/i7js-signatures

4. Click on Code > Download ZIP

5. Download the ZIP file on your computer.

6. Unzip the downloaded file into a working folder on your PC. For example:

   C:\Projects\i7js-signatures-develop

7. Launch the Eclipse IDE.

8. Select File > Import > General > Projects from Folder or Archive.

9. In Import source, indicate the path of the unzipped iText samples.

10. Click Finish.

11. Add a subfolder to the project. For example:

    C:\Projects\i7js-signatures-develop\config

12. In this new subfolder, create the files described in the following sections.

    • hsm.properties

    • signkey.properties

13. In the Eclipse navigation pane, browse to i7js‑signatures‑develop > src/test/java > com.itextpdf.samples.signatures.chapter04

14. In the navigation pane, double-click C4_01_SignWithPKCS11HSM.java

15. Update the file contents as explained in C4_01_SignWithPKCS11HSM.java.

16. In the Eclipse navigation pane, right-click C4_01_SignWithPKCS11HSM.java and select Run As > Java Application.

17. Open the generated file with Adobe Acrobat Reader.

    C:\Projects\i7js-signatures-develop\target\signatures\chapter04\hello_hsm.pdf

18. Check that the generated PDF file includes an embedded signature and a timestamp.