Acrobat 1.0 was released
25 years ago

On June 15th, 1993 Adobe Acrobat 1.0 was introduced in New York.

Beforehand the software code named Carousel was tested over year. I was one of the early beta testers.

Acrobat 1.0 consisted of three different products which were sold separately. The editing software Acrobat Exchange (including PDF Writer), Acrobat Distiller for converting PostScript to PDF and Acrobat Reader for viewing PDF documents:

Read more…Acrobat 1.0 was released
25 years ago

25 years of Acrobat on the Adobe Blog

Bryan Lamkin, a long time Adobe manager wrote an article about the 25th anniversary of Acrobat on the Adobe Blog.

He talks about the Camelot white paper written by John Warnock, founder of Adobe Systems, which is considered the starting point of PDF and Acrobat. 

Acrobat 1.0 was introduced officially on June 15th, 1993 in the Equitable Center in New York.

In the last 25 year documents have evolved from printed paper pages with text, graphics and images to digital documents including videos, interactive objects and links. PDF was adopted contiously to the changing requirements.


A quantum leap in Preflight!

The latest updates of the most important preflight tools (Enfocus PitStop and Callas pdfToolbox) feature new technologies which allow to substantially leverage the quality of preflight checks. We had to wait long time for such possibilities!

Until now preflight tools could only check for properties of single isolated PDF objects. The classical example is black text which is not overprinting. A corresponding check has also issued an error message if the black text was not placed on top of a color background but over the paper white. In this case it’s irrelevant if the text is overprinting or not! This created a lot of unjustified error message (false positives) which was irritating for the user. This has often led to ignore serious error messages. This is a big problem with the preflight profiles of the Ghent Workgroup and PDFX-ready since they feature many overprint checks.

In the past preflight also checked invisible objects which were masked or covered by other objects.

A restriction of the objects to check was only possible with the page geometry boxes (e.g. BleedBox, TrimBox). A restriction of the preflight to an arbitrary contour (e.g. cutline) was not possible.

Read more…A quantum leap in Preflight!

10 most popular posts on PDF-AKTUELL in 2017

In 2017 70 posts in english and 75 posts in german were published on PDF-AKTUELL. These were the 10 most popular posts:

  1. Is JPEG2000 compression suitable for PDF files for prepress? (28.06.17)
  2. eciCMYK (FOGRA53) as new CMYK exchange color space (05.09.17)
  3. PDF 2.0 (ISO standard 32000-2) is (finally) published! (07.08.17)
  4. Quality loss after color conversion in Acrobat (17.10.17)
  5. Enfocus PitStop 2017 with new technology (21.04.17) 
  6. Acrobat DC April 2017 Update with confusing version jump (11.04.17)
  7. Acrobat DC 2018 with PDF 2.0 (20.11.17)
  8. 25 years PrePress-Consulting Stephan Jaeggi (15.01.17)
  9. Four color conversion technologies for PDF (18.10.17)
  10. Problem with Enfocus PitStop Inspector in Adobe Acrobat DC 2017 (16.06.17)

Error in Adobe PDF Print Engine
caused by bad font data

Datalogics, distributor of Adobe software libraries for developers, has publisher a knowledge base article on a new error in version 3.0 of the Adobe PDF Print Engine (APPE) called NON-FATAL PDF Exception: Cannot extract the embedded font. This error message generated by the Adobe Common Renderer is caused by bad font data. The article describes settings which can prevent this error message (but adds the risk of wrong display of fonts).