upload gives white screen

[eluser]LuckyFella73[/eluser]
Hej hej Überfuzz,

I can't see an error at the pointed lines. Are you
sure that the pdf file is uploaded and did you try
to echo a test-string in your else condition to prove
that the script in the else condition is performed?

Har det sa bra

Update:
I just tested your lines from the else condition in
my backend where a pdf upload is done and got the
print_r result like expected. Tested with CI 1.7.1

So I think it must be something else ...
very helpful ..