pdf files http_open

I have SWI-Prolog (Multi-threaded, 64 bits, Version 6.6.5 and I discovered problem

in bringing down pdf files
call is http_open(A, In, [status_code(Code),timeout(100)] )
where A is URL like http://www.whitehouse.gov/sites/default/files/jobs_act.pdf
it brings the file,which is not convertible by pdftotext it gives the lots of
Syntax Error: Embedded font file may be invalid
Syntax Error: Embedded font file may be invalid
Syntax Error: Embedded font file may be invalid
Syntax Error: Embedded font file may be invalid
Syntax Error: Embedded font file may be invalid
However if I bring the same URL by browser and save it is convertible
 I discovered it today, but remember
that it worked in 6.2 
I am sending this without attachments, since they are over 100K
-------------- next part --------------
HTML attachment scrubbed and removed