Dear all, On the 30th anniversary of PDF technology, we're excited to announce the availability of the first development preview of a new veraPDF-powered application. Building on the great work done by the PDF Association supported by the Defence Advanced Research Projects Agency (DARPA), veraPDF has developed an open-source PDF checker based on the Arlington PDF Model. This application is separate from the veraPDF PDF/A and PDF/UA validator but comprises a very familiar package of GUI and command-line applications. *The Arlington PDF Model is an invaluable resource for anyone developing or testing PDF tools. *Read more about the development here. <https://openpreservation.org/news/development-preview-pdf-file-checker-based-on-the-arlington-pdf-model/> The veraPDF development team have utilised Arlington in a way that's compatible with the veraPDF architecture. The Arlington PDF Model-based checker can now analyse PDF files against the full PDF 2.0 specification, including errata, by downloading the Java-based installer (Win, MacOS, Linux, requires Java 8+ JRE installed) at veraPDF Software Downloads <https://software.verapdf.org/develop/arlington/>. Best wishes, Helena -- Helena Watson (she/her), Marketing Officer Open Preservation Foundation (OPF) <https://openpreservation.org/> Twitter <http://twitter.com/openpreserve> | GitHub <https://github.com/openpreserve/> | Mailing List <http://openpreservation.org/subscribe> Please note: I work part-time for OPF, please bear with me if I don't reply to your email right away. I may email you at a time that is convenient for me, but please don't feel the need to respond outside of your working hours. Discover the benefits of OPF membership <https://openpreservation.org/membership> ######################################################################## to manage your NDSA-ALL subscription, visit ndsa.org/ndsa-all