PAVE 2.0 vs veraPDF

PAVE 2.0 is a free, web-based, AI-powered tool for remediating PDF documents. Developed by the ICT Accessibility Lab at the ZHAW Institute of Computer Science, it guides users through an eight-step workflow. Users can group and adjust regions such as paragraphs, headings, figures, tables, formulas, and captions. They can set the reading order of page regions for screen readers, organize heading levels, and define table and list structures. The tool supports adding or editing alternative text for figures and mathematical formulas. A final check lets users review results and add metadata; the page states that an accessible PDF needs at least a title, author, and language. PAVE 2.0 lists PDF tagging, reading-order, alternative-text tools, and PDF/UA support. It is not suitable for confidential information, particularly sensitive personal data involving health, political, religious, or ethnic origin. The tool warns that editing may change PDF content or presentation, leaving users responsible for reviewing generated files. ZHAW states that it assumes no liability for generated PDFs.

veraPDF is an open source validator for PDF/A and PDF/UA conformance. Its Implementation Checker validates all PDF/A parts and conformance levels, and performs machine checks for PDF/UA parts 1 and 2. The Policy Checker evaluates PDF Features Reports against institutional policy profiles. A Metadata Fixer makes a limited set of repairs, such as removing an incorrect PDF/A flag or repairing broken XMP when that is the only obstacle to a legitimate flag. The Reporter transforms machine-readable reports from the Implementation Checker, Policy Checker, and Metadata Fixer into other forms for downstream use. Developers can use the validation library as a Java archive through Maven, a desktop GUI, or a command-line application. Plugins can add third-party feature extraction tools to PDF Features Reports. The project describes digital preservationists and memory institutions as key users, and offers an API and test files for developers. Desktop installers are available for Windows, Mac, and Linux; these systems need Java 8 or later. veraPDF is dual licensed under GPLv3 or later and MPLv2 or later. Downloads include GPG signatures and instructions to check installer integrity. Development builds may contain bugs or missing features and come without support or guarantees. The validator costs nothing.