[reportlab-users] Problem with embedded font, help needed

[Robin Becker]

Dinu Gherman wrote:

> Roberto Alsina:

> 

>> It was a StringIO which I think uses cStringIO if it's available, and 

>> python

>> 2.6.

>>

>> Anyway, it's not worth the problem even to debug unless you really, 

>> really,

>> really want to avoid creating a tempfile (say, if you are in google app

>> engine).

> 

> 

> I'm saving lots of PDFs into cStringIO.StringIO objects (also

> using DejaVuSans) and I never observed this issue, so far...

> 


I think Dinu is right here; unless some kind of string conversions are going on 
it should be OK to write PDFs into a filelike object such as StringIO.StringIO 
and read it back without problems.

Indeed internally fonts are often handled that way eg ttfonts.py


> 	def makeStream(self):

> 		"Finishes the generation and returns the TTF file as a string"

> 		stm = StringIO()


where the subset fonts are created as filelike objects. All the writes are done 
using the stm.write method though.



> BTW, saving to memory should be much faster than to and from

> a disk, and it helps extending the life time of your disk.

> 

> Regards,

> 

> Dinu

.........

-- 
Robin Becker