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Screen-shot of Google Trends search for "PDF".

How do we gain insight into how users’ views of documents are shifting? Google Trends is an increasingly interesting source of high-level marketplace data. By aggregating Google’s search data over time, reporting a term’s popularity as compared with all other searches.

Diagram of the workflow described herein.

The PDF Techniques Accessibility Summit’s objective is to establish a broad-based understanding of how PDF files should be tagged for accessibilty. It’s an opportunity to focus on establishing a common set of examples of accessible PDF content, and identify best-practice when tagging difficult cases.

A pink lemon-slice among yellow slices.

The typical adoption curve for PDF technologies until approximately 2007 tended to track with that of the original PDF developer. Since then the marketplace has shifted; it’s no longer clear that Adobe drivesPDF feature support worldwide. Accordingly, we are happy to report that adoption of PDF 2.0 continues apace, with new vendors announcing their support every month.

Supporting PDF/UA (services)

The PDF Association recognizes members offering services in support of ISO 14289 (PDF/UA)! We also recognize software vendors supporting PDF/UA.

See the key for more information about this table.

NOTE: All claims are as made by the service provider, and have not been vetted by the PDF Association. Please see each vendor’s “info” link for additional information.

Vendor Remediate QA Training Coaching Word
Accessibil-IT checked. checked. checked. checked. checked. checked. More information.
Axes4 checked. checked. checked. checked. checked. checked. More information.
CommonLook checked. checked.  checked.  checked.  checked.  Unchecked. More information.
IncluDoc checked. checked. checked. Unchecked. checked. checked. More information.
NewFormat AB checked.  checked.  checked.  checked.  checked.  checked. More information.
SRZ Berlin checked.  checked.  Unchecked.  Unchecked.  Unchecked.  Unchecked. More information.
W.E.Weinmann e.K. checked. checked.  checked.  checked.  Unchecked.  Unchecked. More information.

Key to service features


Correction of the logical structure tree of a tagged PDF file to meet PDF/UA conformance requirements.


Verification of PDF/UA conformance based on the Matterhorn Protocol‘s set of checks.


Provision of comprehensive education in PDF accessibility.


Provision of online interactive services to assist customers learn how to make PDF files accessible.

Word templates

Provision of Word template development services.

InDesign templates

Provision of InDesign template development services.