Matterhorn Protocol 1.1
The Matterhorn Protocol 1.1 is a comprehensive list of checkpoints that, when passed, guarantee the conformance of a PDF to ISO 14289-1 (PDF/UA-1) Therefore, there is no need to delve into the entire ISO standard when checking a PDF. Instead, one can simply check according to the Matterhorn Protocol.
Note: The document was published by the PDF Association and is subject to the Creative Commons Attribution 4.0 International License. Version 1.1 of the protocol can be downloaded below in English language.
Tagged PDF Best Practice Guide (V 1.0.1)
The Tagged PDF Best Practice Guide is a guide to the correct syntactic tagging structure of an accessible PDF. This guide is relatively technical and therefore not necessarily suitable for the average user. However, it can be very helpful for accessibility specialists to get a better understanding of the structure of an accessible PDF (e.g., if you are unsure whether a software has exported a PDF correctly in an accessible standard).
Note: The document was published by the PDF Association and is subject to the Creative Commons Attribution 4.0 International License. Version 1.0.1 of the guide can be downloaded below in English language.
