On the Callas blog an article has appeared, in which the managing director Dietrich von Seggern reviews the development of Callas and the PDF technology.
Adobe released planned updates for Acrobat DC and Acrobat 2017. As usual there are two separate installers:
- Acrobat 19.012.20036 for subscribers of the Document Cloud (Continuous Track)
- Acrobat 17.011.30144 for users with a perpetual license of Acrobat 2017 (Classic Track)
The update can also be installed using the Acrobat menu Help > Check for Updates….
In the latest version there are not as many new features as in previous updates. The August update mainly brings improvements for the Mac version:
Adobe is currently testing a modified PDF online sharing feature with some users.
The current version is described on a web page:
PDF files that are stored in the Adobe Document Cloud (e.g. using the Share function) have an individual link that can be used to display the document with (virtually) any Internet browser (without Acrobat/Reader Viewer installed).
Unfortunately, when rendering PDF pages, some PDF functions (e.g. overprinting, transparency, ICC profiles), which are frequently used in PDF print production files, are not processed correctly. For illustration I uploaded Ghent PDF Output Suite 5.0 (PDF/X-4) to the Document Cloud and got many errors:
In his first article Martin Bailey, CTO of Global Graphics, discussed the basics for calculating the required data rate of a RIP, the second article deals with the selection of the class of the Raster Image Processor (RIP):
- Up to 250 MB/s: a single RIP with multi-threading is sufficent.
- Up to 1 GB/s: multiple RIPs should be used on a single server.
- Above 1 GB/s: multiple RIPs distributed over multiple servers are required.
The articles are primarily aimed at manufacturers of output systems (digital printing, CTP). However, it is also interesting for users who wish to learn more about the architecture of RIPs.