On January, 11th I have conducted a webinar for the Ghent Workgroup (GWG) on the Ghent PDF Output Suite 5.0 for which I am the project leader in my role as co-chair of the Process Control subcommittee of the Ghent Workgroup.
PAC, the PDF Accessibility Checker, is a free tool provided by the swiss not for profit Organisation «Acces for All» which allows accessibility checking of PDF documents according the PDF/UA standard.
PAC 3, the new version of the checker, can be downloaded here.
Unfortunaltey there is still no Mac version available.
SD (Software Development) Times has published three articles on PDF 2.0 in the December issue:
- PDF 2.0 offers many improvements to the PDF specification
- PDF 2.0: Clarifying the standard
- The PDF file format is a work in progress
For the articles they have interviewed some members of the PDF Association, who were involved in the development of the PDF 2.0 specification (ISO 32000-2). There is also an overview of the current status of the PDF 2.0 implementations in the most important PDF developer tools.
The latest versions of the Axaio plug-ins for InDesign MadeToPrint and MadeForLayers allow the definition and the PDF export of layers with Processing Steps metadata:
PDF Processing Steps were defined by the Ghent Workgroup and will soon be releases as ISO-Standard 15993. PDF Processing Steps allow standardized identification of non-printing objects in packaging files (e.g. dieline, braille, varnish, folding) and help automating production.
In the upcoming weeks the Ghent (PDF) Workgroup (GWG) is organizing a series of free webinas. These webinars are hold by well known PDF experts from Europe and the US. Recordings of past webinars are also available.
I will conduct a webinar about the Ghent PDF Output Suite on January 11th, 2018.
In the morning of Octobre 26th, 2016 we have launched the PDFX-ready Online Tools. which I had developed for PDFX-ready. Right at the beginning we offered three tools:
- PDF Preflight (with the well known PDFX-ready preflight profiles)
- Color Preflight (Analysis of the undefined color spaces in a PDF)
- ISO<–>PSO Converter (for color transformation between the old and new offset standards)
The experience we made in the past year is pretty good. The Enfocus Switch server with the applications Callas pdfToolbox and ColorLogic ProfileTagger is running very stable. But of course there were a few problems.
The Ghent Workgroup (GWG) has published an interesting poster:
On the front page the GWG is presented. On the back nine reasons to preflight are listed (compiled by belgian VIGC). Each topic is illustrated with an eample.
This page can be used to check how certain PDF definitions are displayed in different viewers (Acrobat/Reader, Apple Preview, etc.) and output devices (printer, proofer, imagesetter).
In addition one should check this PDF with a preflight tool in order to also detect the problems which are not visible. For this the preflight profiles GWG2012 or GWG2015 (part of Acrobat DC Pro, Callas pdfToolbox, Enfocus PitStop Pro) and of course the preflight profiles for Acrobat Pro from PDFX-ready are highly recommended.
For the new Adobe InDesign export settings V2.5 for PDF/X-4 CMYK+RGB from PDFX-ready the technical committee of PDFX-ready has investigated if a change of the compression method from the traditional JPEG to the newer JPEG2000 would be useful.
JPEG2000 uses a completely different compression technology (wavelet transformation) than the old JPEG (discrete cosine transformation). The new technology promises a better quality together with smaller file sizes. JPEG2000 also allows images with more than 8 bits per channel and up to 256 channels. That sounds promising…
We already knew from tests of the Ghent Workgroup that not all PDF viewers (especially on mobile devices) can handle PDFs with JPEG2000. With other PDF viewers (including Acrobat/Reader) displaying JPEG2000 images is much slower than JPEG images.
But after all we wanted to know if we could recommend JPEG2000 compression for prepress data. That’s why we decided to perform a series of practical tests with a calendar with highres images in different color spaces (Device-CMYK, ICC-CMYK, ICC-RGB). Peter Kleinheider has done the output tests with two different RIPs and I did the export tests with Adobe InDesign CC2017.
When comparing the test results we noticed some unexpected surprises!
On May 15th to 17th PDF Days Europe, organized by the PDF Association, took placed again in Berlin. The event, organized for the first time as PDF Technical Conference in 2012 in Basel with less than 60 attendees (mostly developers), was attentended by more than 200 vendors and users this year.
This year the upcoming publication of PDF 2.0 (ISO 32000-2) and a (somewhat vague) preview of next-generation PDF, which is supposed to allow a better use of PDF on mobile devices, were the primary focus of the event. The concept became clearer only at the Hackathon on the third day.
Slides and video recordings are available of most presentations (please allow enough time to load the video previews on the page). There is also a YouTube video posted of my english presentation about the PDFX-ready Online Tools.
PDFX-ready has update their preflight profiles for Acrobat Pro. The latest versions feature the following changes:
- V2.5 (for PDF/X-4):
- Removed check for single-color hairlines (< 0.125 pt) since these lines are no longer problematic in modern CTP and Digital workflows.
- Check of multi-color objects (text < 8 pt; lines < 0.25 pt) also for Digital Printing.
- More details in explanation for spot color check.
- Compatibility with PDF/X-4 created by QuarkXPress 2016/2017.
- V1.5 (for PDF/X-1a and PDF/X-3):
- New checks for recognition of black texts and vektors which most probably were re-separated (was alredy in V2.4).
- More details in explanation for spot color check.
- Removal of check “Annotation of this type not allowed (GWG)” (alignment with V2.x).
- The history of PDF/X
- PDF/X: The key facts
- Technical side and requirements of PDF/X
- Users and industry segments
- Tools and usage
- PDF/X and the other PDF standards
I have contributed a chapter on PDF/X-Plus (about the Ghent Workgroup and PDFX-ready).
ESKO confirmes confirm compatibility of the Esko Software Platform with new Ghent PDF Output Suite version 5.0.
All 48 test patches in the Ghent PDF Output Suite 5.0 were processed perfectly using Esko Software Platform applications and workflows.
Every few years the Ghent Workgroup (GWG) is conduction a survey on the use of PDF. The responses will help to better understand how processes have changed over the years, which specifications are being adopted, and how workflows vary so the GWG can continue to improve their solutions. Completing the survey only takes a few minutes. In order to get better results it would be great if a lot of users could participate in this survey.
- 10 MB instead of 5 MB for FREEWARE
- 40 MB instead of 20 MB for PREMIUM Bronze (individual members)
- 100 MB instead of 50 MB for PREMIUM Silver (corporate members)
- 400 MB instead of 200 MB for PREMIUM Gold (PDFX-ready partners)
In order to benefit from the new file sizes a new PDFX-ready Connector is required.
Members of PDFX-ready will receive an e-mail with the download information (including password) for their PREMIUM version from the PDFX-ready office once the payment of their membership fee for 2017 is received.