Bug#614107: Additional term in license (retaining producer line in pdf files) DFSG-free?

[Johann Felix Soden]

Package: libitext5-java
Version: 5.0.5-1
Severity: serious

Please check if
  "In accordance with Section 7(b) of the GNU Affero General Public  License, you
  must retain the producer line in every PDF that is created or manipulated using
  iText."
conforms to the DFSG. What impact does this clause exactly have?



-- System Information:
Debian Release: wheezy/sid
  APT prefers oldstable
  APT policy: (500, 'oldstable'), (500, 'unstable'), (500, 'testing'),
(500, 'stable'), (101, 'experimental')
Architecture: i386 (i686)

Kernel: Linux 2.6.37 (SMP w/2 CPU cores; PREEMPT)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash