I have been reading the PitStop forum regarding dropping/missing characters
when combining PDFs. It appears that if a font is fully embedded in one PDF
and the same font is subset in another PDF, and then they are combined into
one PDF, this can cause character dropout. This surprised me a bit and
caused me to think about font issues I run across.

Concatenating multiple PDFs into one and resulting font issues has been
something of a mystery to me for some time. As I understand it, the ultimate
scenario is to get all PDFs with fonts embedded and subset. This should
result in no font issues when combined, even if source PDFs are from
multiple sources. I can create this scenario easily if I am the originator
of all PDFs or if I receive them from multiple (hundreds) of sources and
request all fonts be embedded and subset. In both cases I would expect no
font issues. Receiving all PDFs in compliance is not an easy thing to
control when time is of the essence as is the case for a conference
proceedings. My first questions deal with how to handle font issues if
authors do not all embed and subset fonts and there is not enough time to go
back to each author for corrected files. Is there a way to include papers
like this in a combined final PDF to send to a printer? Do you drop papers
that do not meet the embedding and subsetting specifications? I have had
some usccess embeddingIs there another workaround?

My second related topic was raised by a contact at a printer asking for
help. They receive a single PDF comprised of many individual PDFs that were
combined using InfoData's Compose plugin. Their client stamps page numbers
and adds a copyright to all pages before sending the single PDF for
printing. The printer discovers font issues and their first response is to
go back and ask the client to get all fonts embedded and subset. The client
says they can't do it at this stage. So, is there any workflow that will
allow the book to be printed on time short of going back to individual
authors for new PDFs? Also, can a Docutech print a from a series of
individual PDFs on the fly and impose them into a book or does it require a
single PDF of the entire book?

Thanks for any feedback.
Regards,
Glenn Heckard




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