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About the contributor
Shawna McAlearney

Shawna McAlearney is the Marketing Specialist for Appligent Document Solutions.
More contributions
2018 PDF 2.0 Interop Workshop

Following the success of our previous interop workshops in Cambridge, England and Boston, Massachusetts in 2017, the 3rd PDF 2.0 Interop Workshop is taking place immediately following this year’s PDF Days Europe, in Berlin as part of the post-conferenc …

Post-Conference of PDF Days Europe 2018

On Wednesday, May 16, 2018, directly following PDF Days Europe, the PDF Days Post-Conference offers a variety of workshops on PDF 2.0 Interop or PDF/UA.

PDF Days Europe 2018 – schedule of sessions

Fittingly for the tenth anniversary of PDF’ becoming an ISO standard, standardization will play a significant role this year. The focus will be on recent developments, with an eye on the future. The agenda also includes PDF market analyses, next-generation PDF for mobile devices, universally accessible PDF files and the industry-supported veraPDF validator initiative.

Hotel Recommendations and Sightseeing Tips for PDF Days Europe 2018 in Berlin

You will visit the No. 1 PDF event – the PDF Days Europe 2018 in Berlin? Great! Here are some hotel recommendations and sightseeing tips near the event location (SI Hotel).

A double anniversary for PDF Days Europe 2018

Richard Cohn, Principal Scientist at Adobe, one of the two co-authors of the original PDF specification in the era of Acrobat 1.0 gives the keynote on 25 years of PDF during the PDF Europe 2018.

PDF/A: An ISO Standard


ISO 19005-1 is an International Standards Organisation (ISO) Standard that was published on October 1, 2005:

ISO 19005-1: Document Management – Electronic document file format for long term preservation – Part 1: Use of PDF 1.4 (PDF/A-1).

This ISO standard defines a standard format (PDF/A-1) for the long-term archiving of electronic documents and is based on the PDF Reference Version 1.4 from Adobe Systems Inc. (PDF 1.4 is largely equivalent to the functionality implemented in Adobe Acrobat 5).

Two Levels of Compliance

The standard specifies two levels of compliance:

  • PDF/A-1a: Level “A” compliance: in addition to exact visual reproduction it also includes mapping text to Unicode and structuring of the document content
  • PDF/A-1b: Level “B” compliance: exact visual reproduction

Future Development of PDF/A

PDF/A has been established as a line of standards. Additional parts are currently in preparation within the responsible ISO committee (ISO TC 1 171 SC 2 WG 5). It is expected that a second part PDF/A-2, based on a newer version of the PDF format and taking into account new technologies that have been added, for example JPEG2000, will be published in 2010.

ISO Technical Committee

ISO 19005 lies under the responsibility of the ISO Technical Committee (TC) 171, Sub-Committee (SC) 2, Working Group (WG) 5. Secretariat is the USA.

Member countries of PC 171 with voting rights are Austria, Bulgaria, China, France, Japan, Poland, Russian Federation, South Africa, Sweden, Switzerland, Ukraine and the United Kingdom. Members with observer status are Argentina, Germany, Netherlands, Norway, South Korea, and Spain.

Literature about PDF/A

The PDF/A Competence Center has now released two publications dealing with PDF/A:
The reference book PDF/A In a Nutshell from Olaf Drümmer, Alexandra Oettler and Dietrich von Seggern offers a fundamental introduction to PDFA. The book is currently available in four languages: English, French, Spanish and Italian.

Also, the speaker presentations from the PDF/A Conference 2009 in Berlin have been published in an elaborately designed conference transcript. Copies can be obtained on request from the association.

Find more information about the available publications on the Publications page.


Tags: ISO Technical Committee, PDF/A-2, future development
Categories: PDF/A