The bug is in libitext-java (iText 2.1.7) and affects only the
1.41+dfsg-* versions of pdftk.
libitext-java changes the metada of the output pdf file (which is forced
by its license). It includes the text "modified using iText 2.1.7 [...]"
into the producer field.
The metadata in a pdf file can additionally be saved in XMP (Extensible
Metadata Platform).
OpenOffice seems to add XMP by default, Libreoffice only if it is asked (e.g.
by using PDF/A-1a output).
Both write the normal metadata using UTF-16.
libitext-java converts the metadata to UTF-8 but does not delete the
UTF-16 BOM which leads only to a wrong displayed producer entry if there
is no XMP data, but to a fail in the XML writer code with XMP.
** Also affects: libitext-java (Ubuntu)
Importance: Undecided
Status: New
** Changed in: pdftk (Ubuntu)
Status: Confirmed => Fix Released
** Changed in: pdftk (Ubuntu)
Assignee: (unassigned) => Johann Felix Soden (johfel)
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https://bugs.launchpad.net/bugs/807409
Title:
open office pdf has invalid characters
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