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PDF Association

Mission Statement: To promote Open Standards-based electronic document implementations using PDF technology through education, expertise and shared experience for stakeholders worldwide.
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Talking about electronic documents

We’ve done PDF Day events and technical conferences across Europe, in the US, in Australia, and elsewhere. This Electronic Document Conference is the first PDF Association event that’s open to all technologies pertaining to documents. It’s about explor …

Happy new logo!

2006: The PDF/A Competence Center A new year brings new things, and 2019 is no exception! The “four red blocks” logo was first created for the PDF/A Competence Center in 2006. When that organization became the PDF Association in 2011, the design was ad …

Save-The-Date: PDF Day France, Toulouse, April 4, 2019

PDF Day France will be the first French-speaking event of the PDF Association, organised by our member ORPALIS. It will take place in Toulouse which is the home ground of Airbus and we are very happy that Airbus will present a case study around its usage of PDF in their document management environment!

Electronic Document Conference: Call for Papers

Prospective presenters at the Electronic Document Conference 2019 are invited to submit high-quality original proposals for 25-minute presentations on subjects of interest to developers and technical product managers concerned with electronic document implementations.

Have we passed ‘peak 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.

The myths and legends surrounding PDF/A

A number of critics have spoken out against PDF/A, especially when the standard was first introduced. Many criticisms of the format, however, are based on misunderstandings. These are some of the most commonly encountered myths and legends:

  • PDF/A files are too large: PDF/A actually allows exceptionally small file sizes thanks to its sophisticated use of powerful compression algorithms such as JBIG2 and JPEG (and JPEG2000, from PDF/A-2 onwards). Embedded fonts can slightly increase the size of a PDF/A file. When archiving a very large number of individual, fairly similar documents, this can in some cases (such as for mass mailings) prove problematic.
  • PDF/A is not as revision-safe as TIFF: TIFF files are easier to alter than PDF and PDF/A documents. In any case, however, revision safety is not achieved through your choice of file format. It can only be achieved by using an appropriate document management or archiving system.
  • PDF/A does not allow signatures: Quite the opposite. PDF/A expressly supports embedded digital signatures. PDF/A-2 requires PADeS-standard compliance here.
  •  Links are not allowed: This claim is also false. Hyperlinks are allowed in principle. The PDF/A standard sets no requirements as to whether an external link should lead to a valid destination.
  • PDF is a proprietary format: PDF was originally developed by Adobe Systems, but since then PDF (ISO 32000) and PDF/A (ISO 19005) have become ISO standards. TIFF, on the other hand, is a specification belonging to Adobe Systems alone, and it has not achieved the status of ISO standard.
  • Scanned documents cannot be searched by text: PDF/A permits text recognition processes, meaning that even scanned PDF/A documents can be searched.
  • PDF/A is not supported by DMS systems: Any ECM system which works with PDF can also handle PDF/A in principle. Many DMS suppliers offer solutions which support PDF/A.
  • PDF/A does not allow metadata: Not at all: PDF/A specifically requires embedded standardised metadata corresponding to the modern XMP metadata standard, which was published in February 2012 as “ISO 16684-1”. XMP metadata can be directly embedded into the PDF/A document.
  • PDF/A is not globally relevant: This statement is false. Although the very first PDF/A initiatives and products did come from German-speaking countries, the ISO standard has since become a recommendation or even a legal requirement in many countries and industries.
  • PDF/A is expensive to implement: Yes and no. Implementing PDF/A solutions and training staff will incur costs at first, but these investments very often pay for themselves within months.

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Tags: DMS, ECM, JBIG2, JPEG2000, TIFF
Categories: PDF/A