luigi scarso schrieb:


On Sun, Oct 18, 2009 at 12:48 AM, Martin Schröder <martin@oneiros.de> wrote:
2009/10/17 Andreas Schneider <aksdb@gmx.de>:
> As far as I can tell, that seems to demand fully embedded fonts. As

It doesn't. Subsets are allowed.

See also http://www.pdfa.org/doku.php?id=start:en

What about pdf/a and opentype ?

see
http://www.pdfa.org/doku.php?id=pdfa:en:faq
According to the PDF specification, OpenType fonts can only be embedded beginning with PDF version 1.6; PDF/A-1 requires PDF 1.4. This would mean that PDF files with embedded OpenType fonts cannot be converted to PDF/A. Despite this, the conversion seems to have worked.

It is correct that OpenType fonts cannot be embedded in PDF/A files. However, OpenType fonts are often converted to another type (TrueType or Type1) when they are embedded, so creating a PDF/A file should usually not be a problem. If Acrobat 8 recognized the file that you converted to PDF/A as being compliant, then a conversion of the font type probably took place. You can verify the font type of embedded fonts using the Preflight verification report (Check box: “Show detailed information about document”, and then look under “Fonts”).


see
http://en.wikipedia.org/wiki/PDF/A

A new part to the standard, ISO 19005, Part-2 (PDF/A-2), is currently being worked on by the Technical Committee. PDF/A-2 will address some of the new features added with versions 1.5, 1.6 and 1.7 of the PDF Reference. PDF/A-2 should be backwards compatible, i.e. all valid PDF/A-1 documents should also be compliant with PDF/A-2. However PDF/A-2 compliant files will not necessarily be PDF/A-1 compliant.


The font type conversion in Acrobat is interesting. Anyhow, I never used PDF/A.

--
luigi


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