Calculation of the
required data rate of a RIP

In addition to the article What does a RIP do? Global Graphics has published an article on calculating the size of the required data rate of a RIP. This is the first part of a two part series on Choosing the class of your Raster Image Processor (RIP).

The article links to an Excel spreadsheet with several calculation formulas for sheetfed and web printing. The formula for sheet-fed printing can also be used to calculate the amount of data for a platesetter.


About the necessity
of «context aware» preflight

The Callas Blog has published an article about the necessity of «context aware” preflight. The new «Sifter» technology in Callas pdfToolbox 10 allows to analyze PDF objects in their context. See also my article A Quantum Leap in Preflight!.

Akash Choudhary describes some use cases in his post. The classic example is certainly small black text that is set to knockout:

If the black text is places over a colored background (left), overprinting is important to prevent white flashes in case of register inaccuracies in the printing machine. If the text has no background (right), it does not matter whether it is set to overprint or knockout.

Read more…About the necessity
of «context aware» preflight

Podcast on Industry Trends, PDF 2.0
and the Ghent Workgroup

In a podcast (27:42) at Podcasts from the Printerverse David Zwang, Chairman of the Ghent Workgroup (GWG), shares some trends he is seeing in the industry, and how the Ghent Workgroup is developing new possibilities with PDF 2.0 to help printers and designers optimize their production files in conjunction with evolving digital print technology.


Better organization
using preflight libraries

Four Pees, the international distributor of Callas products, has published a video about the benefits of libraries in Callas pdfToolbox with useful tips for optimal organization of these libraries.

Since the April 2017 update of Acrobat Pro DC, these libraries are also available in the preflight feature of Acrobat (developed by Callas). Therefore, (most of) the tips in this video are also useful for Acrobat users: