by Leon | Feb 24, 2025 | Accessible PDF, PAC solutions
PAC 2024 Error Details Appearance Category Metadata and Settings > Document Settings > Displaying the document title in the window title Error Message "DisplayDocTitle" entry is not set Matterhorn Error Condition 07-002 (The...
by Leon | February 23, 2025 | Accessible PDF, PAC solutions
PAC 2024 Error Details Appearance Category Logical Structure > Alternative Descriptions > Alternative Descriptions for Annotations Error Message Annotation without alternative description Matterhorn Error Condition 28-012 (A link annotation indicates...
by Leon | Feb 18, 2025 | Generally, Accessible PDF
Matterhorn Protocol (V 1.1) The Matterhorn Protocol 1.1 is a list of concrete tests that, if the result is positive, ensure the conformity of a PDF to ISO 14289-1 (PDF/UA-1). When checking a PDF, you do not have to go through the entire...
by Leon | Feb 18, 2025 | Generally, Accessible PDF, PAC solutions
Most PDF Accessibility Checker (PAC) error messages are relatively easy to understand. However, it is not always clear how to fix these errors. For this reason, here is an overview of the most common error messages and the...
by Leon | Feb 18, 2025 | Generally, Accessible PDF, How do you tag…?
Theory on the headings of an accessible PDF What specifications does PDF/UA-1 (ISO 14289-1) make for headings of an accessible PDF? PDF/UA-1 (ISO 14289-1) distinguishes between documents with so-called "weak" and "strong" structuring. Since...
by Leon | Feb 18, 2025 | Generally, Accessible PDF
As already mentioned in other articles, the PAC 2024 Checker only checks the machine-verifiable conditions of the Matterhorn Protocol and a large part of the WCAG criteria. The PAC 2024 cannot check the remaining conditions, as these require manual...
