Martin Bailey, CTO of Global Graphics and longtime U.K. representative to the ISO PDF/X committee, has published an article about the difference between PDF/X-1a and PDF/X-4.
In particular, he discusses the question of responsibility for color. With PDF/X-1a, the creator is responsible for the correct colors. With PDF/X-4, the responsibility lies with the prepress specialists.
Callas has published an article about the Spotify feature in the new pdfToolbox 11.
With Spotify images can be converted into a limited number of spot colors. This feature is probably only useful for a few users, but if this requirement exists then Spotify is certainly extremely helpful.
Read more…Conversion to spot colors
with Spotify in Callas pdfToolbox 11
Global Graphics has published two basic articles on modern raster technologies in its blog:
A couple of weeks ago my colleagues at AgileStreams in France have been working on the question How long will it take to preflight a PDF file?
Now Callas has published more details in the Blog post How quick is pdfToolbox’s QuickCheck functionality?
The article explains the principle of the relatively new QuickCheck function and explains which properties of a PDF file can be checked with QuickCheck and which cannot (at present).
Global Graphics has updated their popular «Do PDF/VT Right™» guide.
The english publication offers a good overview on PDF/VT and tells what is necessary for an efficent use of this standard.
In addition to a general overhaul there is a section on the new ISO 21812 standard that allows workflow controls to be added to PDF files.
The new edition also contains notes on Harlequin-specific hints, to get even more speed out of your DFE if you are a Harlequin user.