RE: 'Non-economic' rationale for backward compatibility

OK- good point. Another example is that PDFs are not manipulable (for
want of a better term).  Someone with vision impairment that browses in
point 34 font and white text on a black background will find the PDF
inaccessible.

> -----Original Message-----
> From: lguarino [mailto:lguarino@adobe.com]
> Sent: Friday, 1 March 2002 4:59 PM
> To: Gian Sampson-Wild
> Cc: w3c-wai-gl
> Subject: Re: 'Non-economic' rationale for backward compatibility
> 
> 
> Gian,
>   I'm confused by this example. The author can provide alternative
> descriptions for images in PDF files, just as he can for HTML files.
> If they are present, they are exposed to screen readers and other
> assistive technologies. Requiring these descriptions is one of the
> WCAG PDF techniques.
>     Loretta
> 
> 
> > 4. Technologies that have been built for accessibility 
> often only focus
> > on one area (needs rewrite)
> > For example there has been a lot of discussion about the 
> latest Adobe
> > version being compatible with screen-readers, however if 
> the document
> > has images in the text then these images can't be 
> represented through a
> > screen-reader (unless an alternative exists).
> 
> 
>