On Jan 6, 2009, at 7:36 PM, Vic wrote:

> PDF, JPG and other formats, while they might be de facto standards,
> are still proprietary formats,

PDF is an open ISO standard, no longer controlled by Adobe; although  
Adobe PDF's can have proprietary parts, the pdf created by, say  
printing to PDF in OS X is not.

<http://en.wikipedia.org/wiki/PDF/A>

JPEG is also an ISO standard, and open source implementations exist.

<http://www.jpeg.org/jpeg/index.html>

"Probably the largest and most important contribution however was the  
work of the Independent JPEG Group (IJG), and Tom Lane in particular.   
Their Open Source software implementation, as well as being one of the  
major Open Source packages was key to the success of the JPEG standard  
and was incorporated by many companies into a variety of products such  
as image editors and Internet browsers."

TIFF is recommended as the best, not because it's an open standard,  
but because it's about the only widely used lossless image standard.  
JPEG is lossy.

-- 
Bruce Johnson
University of Arizona
College of Pharmacy
Information Technology Group

Institutions do not have opinions, merely customs



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