Practical knowledge that supports everyday lifeResources

PAC enables inexperienced users to make a quick initial assessment of the accessibility of a PDF file. If you want to get to know all the features of PAC or want to know more about checking PDF accessibility, you will find useful information here.

Quickstart guide

The PAC quick guide makes it easier for you to get started and helps you to familiarize yourself with the user interface, all test functions and views as well as useful keyboard shortcuts for navigating the tag tree.

Quickstart Guide

Frequently asked questions

Here you will find answers to the most frequently asked questions about PAC.

FAQ

Quality checks

In the explanations of the quality checks, you will find useful information on exactly what PAC checks for each individual check. This makes it easier for you to assess whether the result is relevant for your document or not.

Quality checks

AI-assisted checks

Here you will find information about AI-assisted checks in PAC 2026.

AI-assisted checks

General Terms

PAC works completely offline and does not send any data to the Internet or to axes4's servers. Please read our General Terms with the respective preamble.

General Terms

Accessibility Conformance Report (VPAT)

The PAC user interface is mostly, but not completely, accessible. Read the Accessibility Conformance Report that we have commissioned.

The Accessibility Conformance Report was issued for PAC 2024. Apart from the new AI tab, the user interface has not changed in PAC 2026. Since VPAT is a self-declaration, we note that the information for PAC 2024 also applies to PAC 2026.

PAC Accessibility Conformance Report.pdf