A possibly similar issue had been described recently in <http://thread.gmane.org/gmane.comp.graphics.inkscape.user/13517>, including a workaround to produce a differently coded PDF file where the labels along the axes are no longer inside one big text object each instead of an object per number.
<off-topic>: I haven't not tested the workaround myself, nor can I reproduce the error - no EMF export format on my platform, nor a version of UniConvertor available that handles text correctly </off-topic>.
A possibly similar issue had been described recently in <http:// thread. gmane.org/ gmane.comp. graphics. inkscape. user/13517>, including a workaround to produce a differently coded PDF file where the labels along the axes are no longer inside one big text object each instead of an object per number.
<off-topic>: I haven't not tested the workaround myself, nor can I reproduce the error - no EMF export format on my platform, nor a version of UniConvertor available that handles text correctly </off-topic>.