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Accessible PDFs: Knowledge, Tips and Instructions
Accessible PDF – correctly tagging footnotes
If you export your PDF from Word, footnotes are almost correctly tagged. If you have a PDF without tags, you will have to re-tag the footnotes completely. In this example, we will correct Word's footnote implementation. As you can see in the...
Accessible PDF – Creating and tagging tables correctly
If your accessible PDF is to contain tables, you should think about the table structure early on. The more complex the table structure, the more difficult it will be to set up the tables correctly for accessibility later. In addition, it is important for...
Accessible PDF – correctly tagging headers and footers
When you export a Word document as a PDF, the header and footer are automatically tagged as artifacts. In many cases, however, this is not the correct implementation. The footer often contains important contact information that is not found anywhere else in the...
Adobe Acrobat tag creation does not work
Error in Adobe Acrobat Sometimes the error occurs in the reading order window that a tag is not created correctly. In the example below, an image was marked that does not yet have a tag in the tag structure tree. After selecting the image and clicking on...
PAC 2024 – “Widget” annotation not within a “Form” structural element
PAC 2024 Error Details AppearanceCategory Logical Structure > Structure Elements > Annotations > Nesting of “Widget” AnnotationsError Message “Widget” annotation not within a “Form” structure elementMatterhorn Error Condition 28-010 (A...
PAC 2024 – Tab order of a page with annotations is not set to “structure”
PAC 2024 Error Details AppearanceCategory Metadata and Settings > Document Settings > Tab Order for Annotated PagesError Message Tab order of an annotated page is not set to “structure”Matterhorn Error Condition...
PAC 2024 – Language Not Set or Wrong
PAC 2024 Error Details AppearanceCategory Metadata and Settings > MetadataError Message (no language) or language incorrectly setMatterhorn Error Condition Error Condition: 11-006 (The natural language for document metadata cannot be determined...
PAC 2024 – Font is not embedded
PAC 2024 Error details AppearanceCategory Basic requirements > Fonts > Font embeddingError message Font is not embeddedMatterhorn Error condition 31-009 (The font program is not available for a font used for display...
PAC 2024 – “Note” structural element without ID
PAC 2024 Error Details AppearanceCategory Logical Structure > Structure Elements > Footnotes/Endnotes > IDs of “Note” Structure ElementsError Message “Note” Structure Element without IDMatterhorn Error Condition 19-003 (The ID key for a Note tag is...
PAC 2024 – Untagged text object
PAC 2024 Error Details AppearanceCategory Basic Requirements > Content > Tagged Content and ArtifactsError Message Untagged Text ObjectMatterhorn Error Condition 01-005 (Content is neither tagged as an artifact nor as real content...
PAC 2024 – Untagged Path Object
PAC 2024 Error Details AppearanceCategory Basic Requirements > Content > Tagged Content and ArtifactsError Message Untagged Path ObjectMatterhorn Error Condition 01-005 (Content is neither tagged as an artifact nor as real content...
PAC 2024 – Possible inappropriate use of the structural element “Figure”
PAC 2024 Error Details AppearanceCategory Logical Structure > Structure Tree > “Figure” Structure ElementsError Message Possible inappropriate use of the “Figure” structure elementMatterhorn Error Condition 01-006 (The structure type and attributes of a...
PAC 2024 – Header cell without assigned subcells
PAC 2024 Error details AppearanceCategory Logical structure > Structural elements > Tables > Header cell assignmentError message Header cell without assigned subcellsMatterhorn error condition 15-003 (In a table whose cell assignments are not...
PAC 2024 – No PDF/UA marking
PAC 2024 Error Details AppearanceCategory Metadata and Settings > Metadata > PDF/UA MarkingError Message No PDF/UA MarkingMatterhorn Error Condition 06-002 (The metadata data stream in the catalog dictionary does not contain...
PAC 2024 – No title available in the XMP metadata
PAC 2024 Error Details AppearanceCategory Metadata and Settings > Metadata > Titles in XMP MetadataError Message No title in the XMP metadataMatterhorn Error Condition 06-003 (The metadata stream does not contain a...
PAC 2024 – Form field has no alternative name
PAC 2024 Error Details AppearanceCategory Logical Structure > Alternative Descriptions > Alternative Names for Form FieldsError Message Form field has no alternative nameMatterhorn Error Condition 28-005 (A form field whose hidden flag...
PAC 2024 – “Formula” structural element without alternative text
PAC 2024 Error details AppearanceCategory Logical structure > Alternative descriptions > Alternative texts for “Formula” structure elementsError message “Formula” structure element without alternative textMatterhorn error condition 17-002 (For a formula tag...
PAC 2024 – “Figure” structural element without alternative text
PAC 2024 Error Details AppearanceCategory Logical Structure > Alternative Descriptions > Alternative Texts for “Figure” Structure ElementsError Message “Figure” structure element without alternative textMatterhorn Error Condition 13-004 (For a Figure tag...
PAC 2024 – “DisplayDocTitle” entry is not set
PAC 2024 Error Details AppearanceCategory Metadata and Settings > Document Settings > Display of document title in window titleError Message “DisplayDocTitle” entry is not setMatterhorn Error Condition 07-002 (The...
PAC 2024 – Note without alternative description
PAC 2024 Error Details AppearanceCategory Logical Structure > Alternative Descriptions > Alternative Descriptions for AnnotationsError Message Annotation without alternative descriptionMatterhorn Error Condition 28-012 (A link annotation has an alternative description in...
Accessible PDF: External Resources
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...
Solutions to the PAC error messages
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...
Accessible PDF: Tagging headings correctly
Theory on the headings of an accessible PDFThe PDF/UA-1 (ISO 14289-1) distinguishes between documents with so-called "weak" and "strong" structuring. However, in practice, PDFs with strong structuring do not normally occur and the...
What are the limitations of the PAC 2024 Checker?
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...
Who uses the PAC 2024 Checker and when is it used?
The PAC 2024 Checker is used by agencies and service providers who are commissioned to create accessible documents, as well as by the clients who check the documents provided. During the creation of accessible PDF documents...
What is the PAC 2024 Checker?
As you learned in the previous post about the guidelines and laws, a PDF must meet certain requirements to be considered accessible. Many of these requirements are machine-checkable (the rest must be checked manually). The PAC...
Check accessible PDF
Before you check a PDF document for accessibility, it is important that you have a basic understanding of what an accessible PDF actually is. Once you have this basic understanding, you need to know the guidelines and laws for...
What guidelines are there for an accessible PDF?
In German-speaking countries, there are many different requirements when it comes to accessible PDFs.
Creating accessible PDFs – required programs
In this article, you will learn more about the software you need and the costs if you want to create an accessible PDF yourself.
What is an accessible PDF?
An accessible PDF is a digital document in PDF format whose full content is accessible to people with disabilities through the use of suitable hardware and software.
Efficient Business Documents: Tips, Tools & Best Practices
DIN 5008 Business Letter: Rules for the Structure According to the Standard
In this article, you will learn how to write a DIN 5008 business letter. We will show you the rules for the structure according to the standard and provide you with templates and examples.
Create automated forms – How to save time and avoid errors
Automated forms offer a modern solution for companies that want to increase efficiency and precision in their work processes. Whether it's needs analyses, order forms or internal approvals - with automated forms you save valuable time, minimize errors and simplify your workflow considerably.