## Overview Upgrading Adobe PDF Library (APDFL) Java applications to v21 involves updating Java, dependency versions, and the package repository. The Java package `com.datalogics.PDFL` and Maven coordinates `com.datalogics.pdfl:pdfl` remain unchanged... Read More

Using the Adobe PDF Library, you can access the XML structure behind an XFA form field. XFA, or XML Forms Architecture, is a set of proprietary XML specifications for use with web forms. XFA forms are saved within a PDF document. If you want to merge... Read More

A Forms Data Format (FDF) file is a text file used by Adobe Acrobat to hold values exported from PDF forms documents. The Adobe PDF Library views an FDF file as a COS document. As such, it can be opened by the Adobe PDF Library, and can be used with... Read More

Obtaining and Configuring the Adobe PDF Library Java Package Beginning with APDFL version 21.1.0, APDFL Java packages are available from the Datalogics Maven repository rather than being published as new releases to Maven Central. This guide explains... Read More

Installing and Configuring the Adobe PDF Library Maven Package This guide explains how to configure your project's pom.xml file and manually install the Adobe PDF Library (APDFL) Maven package for use in Windows and Linux environments.   1.... Read More

To add JavaScript to a PDF document, you need to set a PDF document's OpenAction to a JavaScript Action. The OpenAction value specifies a destination in the document that will be displayed when the document is opened, or an action that will be... Read More

If you would like to make it possible for a user to display additional information about a graph by clicking on that graph of scrolling over it, use the Additional Actions dictionary. This dictionary describes what should happen when an action occurs... Read More

A QR code can be generated with APDFL Adobe C/C++ interface from a string using the PDPageAddQRBarcode() function. This functionality is exposed in the modern C++ interface as add_qr_barcode(), and in the .Net and Java interfaces as the AddQRCode... Read More