Hi John, it’s not about PDF versions but PDF versions and standards.
The base syntax has not changed. But the elements described by the base have. BR Maruan Sahyoun Am 10.03.2014 um 09:20 schrieb John Hewson <j...@jahewson.com>: > Hi Maruan > >> As of today PDFBox has no formal support for specific PDF versions in a way >> that a specific version can be enforced, validated ... > > Perhaps that is because there is not much demand for this? Nowadays everyone > has instant access to the latest version of Adobe Reader so checking that a > PDF can be opened with a specific version of Adobe Reader is not that useful > anymore. There might be some niche cases, but I can’t think what they would > be. For cases where it’s important that a PDF file is valid then a format > such as PDF/A or PDF/X must be used instead as “vanilla" PDF is ambiguous. > >> The PDFBox PDF/A validation does a good job for PDF/A 1b but it can not be >> easily extended to other standards. > > Yes, PDF/A is carefully validated because it is for archival purposes, unlike > regular PDF files. > >> Do you think that there is a need for a more formal support of such >> standards and versions? The would influence some of the design decisions for >> the parser and affect the base objects. > > > I can’t think of a reason why someone would want to parse a specific PDF > version, so my answer is no, I don’t think there is such a need. Has the > syntax of PDF even changed that much over the different versions? > > — John >
