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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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The only digital document format

Margaret Hamilton led a team credited with developing the software for NASA’s Apollo and Skylab. Her  team was responsible for developing in-flight software, which included algorithms designed by various senior scientists for the Apollo command module …

Save the Date: PDF Days Europe 2018, May 14-16, in Berlin

PDF Days Europe is the most popular PDF event of the year. It’s where the PDF industry meets, and where institutional and corporate users come to learn what else PDF could do for them. The first two PDF Days will offer a broad range of educational sessions focussed on current and perennial topics in the world of PDF technology implementation.

The Power of the Page

It’s a question that vexes vendors of web-based solutions everywhere: why do people still insist on PDF files? And why does PDF’s mindshare keep going up? “PDF is such antediluvian technology!” they say. “It’s pre-web, are you kidding me? It’s so old-f …

PDF Association technical resources: an overview

PDF is PDF because files produced with one vendor’s software can be read using a different vendor’s software with no loss of fidelity. Interoperability is key to our industry. The PDF Association is a international membership organization dedicated to …

2022: The last year of paper for records-keeping

NARA (The National Archives and Records Administration) is the final depository for the long-term records generated by all other agencies of the U.S. Federal Government. The agency has a key role in preserving the cultural history of the republic as we …

Regulatory factors pushing ECM from TIFF to PDF


Today’s ECM: Based on TIFF images

TIFF vs. PDFThe Enterprise Content Management (ECM) industry has been standardized on TIFF-encoded images for over 25 years. Billions of page images, most of them scanned from paper, populate hundreds of thousands of document management system installations worldwide. The ECM industry is comfortable with TIFF. While proprietary (Adobe owns it), TIFF is a relatively simple technology. The software engineering necessary to create and display TIFF images was brought to maturity decades ago. The ancillary features you might expect of documents; metadata, navigation, annotations and full-text search, among others, are instead features of document management software. Pages in TIFF are just pixels. This suits the industry just fine – keep all the valuable stuff in proprietary systems, deploy only “dumb” images.

PDF dominates in electronic documents

PDF is complex compared to TIFF, but many features users consider important are built right into the format. A biplane is less complex than an airliner, but that’s not a good reason to travel by Sopwith Camel! PDF won the battle for dominant fixed-format electronic document years ago. The ECM industry noticed only in the sense that vendors recognized that they needed to be able to ingest PDF files, even if most treat PDF as if it were TIFF. But there’s another angle, one the ECM industry hasn’t yet come to grips with: PDF documents can be made accessible to users with disabilities, and TIFF images cannot.

Tomorrow’s ECM will have to be accessible

In the future the ECM/EDRM industry will be forced to abandon TIFF, and accessibility is one of the key reasons why. TIFF images are a non-starter in terms of accessibility. And the regulations are coming…

Section 508 of the Rehabilitation Act regulates the documents created, distributed and procured by US federal government agencies. Many categories of documents will be obliged to comply with the refreshed Section 508 regulations for accessibility. These regulations (final NPRM released February 18, 2015) require conformance with either WCAG 2.0 or PDF/UA.

The Americans with Disabilities Act (ADA) requires covered employers to provide reasonable accommodations to employees with disabilities, and imposes accessibility requirements on public accommodations. Having announced its intention to address website accessibility in 2015 as part of updating ADA regulations for public accommodations, the DoJ is expected to require WCAG 2.0 conformance for websites, and – if they follow the US Access Board’s lead, which seems reasonable – PDF/UA for PDF documents.

Where does this leave TIFF?

An essential aspect of accessibility is that images cannot substitute for documents. Government regulations will require that text, semantics and navigation, annotations, form-fields, digital signatures, and so on, be available to all users. TIFF images may be necessary for image data, but when a document is required, only PDF can really deliver. The sooner the ECM industry decides to engage with PDF on its own terms the sooner it will be able to address the oncoming need to provide an accessibility solution for enterprise content management.


Tags: ADA, EDRM, Section 508, TIFF, accessibility
Categories: ECM