[rfc-i] Use of PDF/A for archiving RFC's

Julian Reschke julian.reschke at gmx.de
Fri Mar 23 00:45:30 PDT 2012


On 2012-03-23 08:37, Joe Hildebrand wrote:
> On 3/21/12 4:26 PM, "Leonard Rosenthol"<lrosenth at adobe.com>  wrote:
>
>> On the other hand, it is not self-contained (eg. Images are separate) which
>> means storage&  exchange are more difficult.  Also no support for signatures
>> or authenticity mechanisms or for metadata.
>
> Images need not be separate.  As mentioned by others, there's SVG, but for
> folks that want *real* images, use the mechanism that Joe Gregorio does in
> his sparkline generator:
>
> http://bitworking.org/news/Sparklines_in_data_URIs_in_Python
>
> Example:
>
> data:image/png,%89PNG%0D%0A%1A%0A%00%00%00%0DIHDR%00%00%00%3C%00%00%00%0F%08
> %02%00%00%007p%3B%26%00%00%01%1BIDATx%9Cb%FC%FF%FF%3F%C3P%03%00%00%00%00%FF%
> FFb%1Ah%07%90%03%00%00%00%00%FF%FF%22%E4hFF%04I-%80%DF4%22%EC%02%00%00%00%FF
> %FF%227%A4%A9%EB%0D%E2mddd%60%60%00%00%00%00%FF%FF%A2e%F2%20%DEc%24%06%01%00
> %00%00%FF%FF%829%1AY%1B%C5%D1G%94.%0A%E2%0A%00%00%00%FF%FF%22%14%D2%90%B2%85
> %D4%12%06%7F%10%E07%8D%08%BB%00%00%00%00%FF%FFbjll%84sp%B1%897%9A%80.J%00R%F
> 0%01%00%00%00%FF%FF%A2B%9A%868%14%8Bs1%3C%86%A9%06%2ABbL%02%00%00%00%FF%FF%8
> 29%1AY%1B%FEP%24%AF2%C2%D4%85%D7%1C%FC1%06%00%00%00%FF%FF%A2%28%A4q%1AMD%10%
> 90%60%1A%06%00%00%00%00%FF%FFb%AA%AF%AF%87sp%B1%89%07%E4%E9%C2%05p%25%3C%00%
> 00%00%00%FF%FF%A2B%9A%868%94%18%E7b%AA%21%CF%93%00%00%00%00%FF%FF%22%C1%D1%D
> 4%0DEJ%EC%02%00%00%00%FF%FF%A2%28%A4%A9%EB%0D%E2M%03%00%00%00%FF%FF%03%00%1B
> %19J%21uT%D5%80%00%00%00%00IEND%AEB%60%82
> ...

I believe this will not work with ancient versions of Internet Explorer 
(dunno whether we care), and it may also come with length restrictions 
(to be tested).

Best regards, Julian



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