What’s the difference
between PDF/X-1a and PDF/X-4?

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.

Adobe PDF 1.3 is 20 years old!

On July 3, 2000 the PDF Reference, Second Edition – Adobe Portable Document Format 1.3 was published by Addison-Wesley:

The new version brought the following new features for PDF prepress files:

  • 2-byte CID fonts (more than 256 characters)
  • OPI 2.0 support (Open Prepress Interface)
  • ICC-based colors (ICC color profiles)
  • DeviceN color space (e.g. for duotone images, spot color gradients)
  • Smooth Shading (blends)

Read more…Adobe PDF 1.3 is 20 years old!

Accelerate variable print productivity

Six years ago Global Graphics published the brochure Do PDF/VT Right. Last year a second edition was published.

Now the follow-up publication Full Speed Ahead was introduced.

Full Speed Ahead: How to make variable data PDF files that won’t slow your digital press is a concise guide published today that provides objective information and advice to anyone with a stake in VDP: graphic designers, print buyers, production managers, press operators, owners of PSPs, and developers of digital presses and composition tools.

The free guide is edited by Martin Bailey, chief technology officer for Global Graphics and the primary UK expert to the ISO committees that maintain and develop PDF and PDF/VT.

Read more…Accelerate variable print productivity

Acrobat Update May 2020
fixes Preflight problems

Adobe released planned updates for Acrobat DC, Acrobat 2017 and Acrobat 2015. As usual there are three separate installers:

The updates can also be installed using the Acrobat menu Help > Check for Updates….

For Acrobat 2017 and Acrobat 2015 there are only a few bug fixes. However, for Acrobat DC there are a number of new features and improvements:

Read more…Acrobat Update May 2020
fixes Preflight problems