To determine if a PDF document is a Portfolio, look at the document Root dictionary to see if “Collection” appears there. The /Root directory is part of the structure of the PDF document. In a Portfolio PDF document, multiple /Root directories... 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

This article applies only to the Licensed Managed (LM) release of APDFL, which requires a license file (apdfl.lic) to run. Running the licensed managed (LM) release of APDFL in a Docker container might result in an exception, the most common of which... Read More

Adobe PDF Library (PDFL) SDK Adobe PDF Library SDK (PDFL) is a robust C toolkit for programmatically creating, editing, converting, and managing PDF documents. Built on the same core technology used in Adobe Acrobat, it provides enterprise-grade... Read More

In the Adobe PDF Library (APDFL), a PDEForm is a subtype of PDEElement. This relationship allows a PDEForm to be treated like any other PDEElement within the PDF Edit (PDE) architecture. Understanding this hierarchy is key to effectively adding,... Read More

What is PDF/UA? PDF/UA (Universal Accessibility) is a set of specifications for making PDFs accessible to persons with disabilities by imposing additional requirements over the baseline PDF specifications: Specifically, ISO 14289-1:2014 for PDF v1.7 ... Read More

For this API: PDDocSetNewCryptHandler(document, ASAtomFromString("Standard")); The API Reference says: newCryptHandler - The ASAtom for the name of the new security handler to use for the document. This name must be the same as the pdfName used when... Read More

The standard security provided in a PDF document consists of two different methods, each with its own type of password. The User password controls the ability to open the document. This password encrypts the file and prevents someone without the... Read More

In order to change permission on a document, you must have a password that permits you to change permissions, and you must open the document with that password. Call PDDocGetPermissions() to see if you have the authority to change permissions for a... Read More

The recommended approach to redact content, including Text and other elements, is to utilize Redaction annotations, which is a two-step process. Redaction annotations are first placed on a page and then applied, which will cause any content... Read More