johan's blog

About a year ago, work started on packaging SCAPE tools. Jpylyzer was the first SCAPE tool that was turned into a Debian package.

The most important new feature of the recently released PDF/A-3 standard is that, unlike PDF/A-2 and PDF/A-1, it allows you to embed any file you like. Whether this is a good thing or not is the subject of some heated on-line discussions. But what do we actually mean by embedded files?

The PDF format contains various features that may make it difficult to access content that is stored in this format in the long term. Examples include (but are not limited to):

I've already written a number of blog posts on format validation of JP2 files. Format validation is only a one aspect of a quality assessment workflow. Digitisation guidelines typically impose various constraints on the technical characteristics of preservation and access images. For example, they may state that a preservation master must be losslessly compressed, and that its progression order must be RPCL. A format profile is a set of such technical constraints.