On Wednesday, May 16, 2018, directly following PDF Days Europe, the PDF Days Post-Conference offers a variety of workshops on PDF 2.0 Interop or PDF/UA.PDF Days Europe 2018 – schedule of sessions
Fittingly for the tenth anniversary of PDF’ becoming an ISO standard, standardization will play a significant role this year. The focus will be on recent developments, with an eye on the future. The agenda also includes PDF market analyses, next-generation PDF for mobile devices, universally accessible PDF files and the industry-supported veraPDF validator initiative.Hotel Recommendations and Sightseeing Tips for PDF Days Europe 2018 in Berlin
You will visit the No. 1 PDF event – the PDF Days Europe 2018 in Berlin? Great! Here are some hotel recommendations and sightseeing tips near the event location (SI Hotel).A double anniversary for PDF Days Europe 2018
Richard Cohn, Principal Scientist at Adobe, one of the two co-authors of the original PDF specification in the era of Acrobat 1.0 gives the keynote on 25 years of PDF during the PDF Europe 2018.PDFcontainer – a proposal
Introduction PDF technology profiles can be leveraged to provide trusted, predictable containers for record types that often present workflow and preservation challenges, with email and case files (associated files in arbitrary formats) as primary use- …
by Dietrich von Seggern
PDF/X is a subset of PDF – see “Technical side and requirements of PDF/X” for an overview. As such, conforming with PDF/X means accepting specific requirements and restrictions to the use of the PDF format.
One principle of PDF/X is that conforming files must be complete, i.e. fully self-contained. In addition, nothing may appear on a PDF/X page that is either not printable at all (such as video or 3D) or where print output is not fully defined (for example, if a font is not embedded). While the first rule is rather easy to implement, the latter is more difficult. PDF allows for many complex situations, for example, colors in semi-transparent overlapping objects. In other cases, it may not be clear whether objects on a layer are to be printed. There are many other cases of interdependencies in which it is difficult to determine whether the print result is unambiguously defined, or not.
Certain features needed only for some print applications (e.g., a bleed zone) are not required in PDF/X as they are not required in all print products. Wherever it makes sense in such cases, however, PDF/X requires that if such information is present, it must be accurate. PDF/X requires, for example, that if a bleed zone is defined then that zone must not be enclosed by the trimmed print product.
These requirements apply in all parts and conformance levels of PDF/X.
PDF/X does not include provisions that although important, may vary depending on the printing conditions, e.g. the minimum image resolution or the bleed zone.
Other non-ISO standards have been developed based on PDF/X that cover such production specific requirements (see “Further quality requirements: PDF/X-Plus” for further information).