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PDF/A and external references

November 2025 by Peter Wyatt

PDF/A ensures reliable long-term rendering by embedding fonts, images, and color profiles, but URLs can still appear in text, hyperlinks, bookmarks, annotations, metadata, and embedded files.

Link annotations and URI Actions define clickable destinations, but PDF/A restricts certain action types to prevent external dependencies.

Guided by clear policies, comprehensive audits of both visible and hidden references help maintain authenticity, accessibility, and long-term integrity of PDF/A documents and digital collections.

PDF/A ensures reliable long-term rendering by embedding fonts, images, and color profiles, but URLs can still appear in text, hyperlinks, bookmarks, annotations, metadata, and embedded files.

Link annotations and URI Actions define clickable destinations, but PDF/A restricts certain action types to prevent external dependencies.

Guided by clear policies, comprehensive audits of both visible and hidden references help maintain authenticity, accessibility, and long-term integrity of PDF/A documents and digital collections.

PDF Association Newsletter: Issue 33

April 2014 by PDF Association staff
Article


Evolving Document-Centric Processes with Advanced Rendering to PDF in Life Science · Meeting Document Requirements in Life Sciences: The Art of Avoiding the Resubmit · About PDF Association Member Adlib … Read more

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April 2014 by PDF Association staff
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The 1.01 update to the Matterhorn Protocol is now available for free download.

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March 2014 by PDF Association staff
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Since its beginnings in 1993, PDF technology has become a gigantic ecosystem with thousands of different providers. Originally a proprietary … Read more

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March 2014 by Olaf Drümmer
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Practical guide from PDF Association member Global Graphics

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March 2014 by PDF Association staff
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This month LEAD’s white paper is an extremely practical one. In fact, we even had a few conversations with customers … Read more

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March 2014 by Olaf Drümmer
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The IS&T Archiving 2014 will – among many other sessions and courses – also feature a PDF/A course. Instructors are … Read more

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March 2014 by PDF Association staff
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«PDF Days in Europe 2014» will start with the Educational Day – three tracks of presentations on a wide range of PDF … Read more

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February 2014 by PDF Association staff
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The PDF Association manages LinkedIn groups for PDF, PDF/A, PDF/UA, PDF/E, PDF/X and PDF/VT.

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February 2014 by PDF Association staff
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The US National Archives and Records Administration (NARA), the agency responsible for long-term federal government records, has published NARA Bulletin … Read more

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February 2014 by Phil Spreier
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For 3D PDF documents, this post describes how to change the center of rotation for the Rotate Tool.

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January 2014 by Nicole Gauger
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This year at CeBIT, PDF Association members are focusing on practical uses for PDF/A-3. This version of the ISO standard … Read more

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