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

Leonard Rosenthol lrosenth at adobe.com
Wed Mar 21 15:08:00 PDT 2012

On 3/21/12 2:24 PM, "Paul Hoffman" <paul.hoffman at vpnc.org> wrote:

>Greetings again, Leonard.

Good to see youŠ

>One common problem with PDF/A is that some display systems cannot render
>the results 

I am not aware of any issues of displaying PDF/A files by PDF viewers that
specifically claim to be "PDF/A conforming viewers".

Remember that a PDF/A file, when viewed in a standard PDF viewer, WILL NOT
render according to the PDF spec.  Here's a blog entry about this, along
with a sample PDF that demonstrates the situation -

>from some PDF/A writers because there is disagreement about what the spec
>says or means, and many systems try to be bug-compatible with others.
>Are there any widely-accepted test systems that will evaluate a PDF/A
>file and say whether it is conformant to the standard and, if not, where
>it failed conformance?

That was the case A WHILE (say 5+ years) ago when the standard was first
introduced, but since then there have been two independent test suites
(Isator and Bavaria) published, which have been used by (at least the
major) PDF/A validation tools to ensure consistent results.  Such
validation tools exist both in commercial as well as open source varieties.

Hope that helps.


More information about the rfc-interest mailing list