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design:pdf [2013/11/28 14:25]
rsewikiadmin created 		design:pdf [2013/12/30 11:43]
rsewikiadmin
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 Currently also contemplating: Currently also contemplating:
-  * PDF/A +  * PDF/A - series of ISO 19005 standards 
-  * PDF/UA+    * Pros: Will minimize issues such as font availability and lessen the need for future reformatting 
 +    * Cons: Likely more expensive to implement 
 +  * PDF/UA - ISO 14289-1 
 +    * Pros: all the usual good reasons to make documents more accessible 
 +    * Cons: relatively new; uncertain as to long term support; unsure if this is necessary given the intent to make HTML docs follow W3C Accessibility Guidelines 
 +    * note also http://www.w3.org/WAI/GL/WCAG20-TECHS/pdf.html 
 + 
 + 
 +Useful information regarding PDF/A available on [[http://www.digitalpreservation.gov/formats/fdd/fdd000318.shtml|PDF/A, PDF for Long-term Preservation]] -- See "Sustainability Factors" 
 + 
 +[[http://www.pdfa.org/2011/12/the-legal-case-for-pdfa/|The Legal Case for PDF/A]] 
 + 
 +[[http://www.3dpdfconsortium.org/pdf-standards-info/pdfa.html|PDF/A]] - from the 3DPDF Consortium 
 + 
 +Note (from [[http://www.dlib.org/dlib/november10/noonan/11noonan.html]] 
 + 
 +   The PDF/A-1 standard provides two levels of compliance: 
 +    
 +   PDF/A-1a denotes "full compliance" and ensures the preservation of a document's logical  
 +   structure and content text stream in natural reading order. The text extraction is  
 +   especially important when the document must be displayed on a mobile device (for example  
 +   a PDA) or other devices in accordance with Section 508 of the US Rehabilitation Act. In  
 +   such cases, the text must be reorganized on the limited screen size (re-flow). This  
 +   feature is also known as "Tagged PDFs."  
 +    
 +   PDF/A-1b denotes "minimal compliance" and ensures that the text (and additional content)  
 +   can be correctly displayed, but does not guarantee that extracted text will be legible  
 +   or comprehensible. It therefore does not guarantee compliance with Section 508 [4]. 
design/pdf.txt · Last modified: 2013/12/30 12:38 by rsewikiadmin

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