[reportlab-users] ttfont checksum fails

[Tim Roberts]

matt-lists at comnet.net.nz wrote:

> I'm in the middle of putting together a function in an application I maintain 

> to create reports in pdf format.  The application has been translated into a 

> number of different languages, and so I need to generate a report using a 

> font that has good non-latin character support.  At the moment, I've chosen 

> verdana.  

> ...

> to register the font with reportlab (config_directory is a variable holding 

> the path to the directory where the verdana fonts I want to use are held).  

> However,  on executing this code, I'm getting the following error:

>

> Traceback (most recent call last):

> ...  File "/usr/lib/python2.4/site-packages/reportlab/pdfbase/ttfonts.py", line 

> 309, in checksumFile

>     raise TTFError('TTF file "%s": invalid checksum %s len: %d &3: %d' % 

> (self.filename,hex32(checkSum),len(self._ttf_data),(len(self._ttf_data)&3)))

> reportlab.pdfbase.ttfonts.TTFError: TTF 

> file "/home/matt/.superkaramba/lwp/verdana.ttf": invalid checksum 0XBBB0AFBA 

> len: 149753 &3: 1

>

> It appears that the checksum is failing.


Verdana isn't part of Linux, so you must have copied it from a Windows
system.  Is it possible that you copied the font to your Linux system
using FTP without using binary mode?  My Windows verdana.ttf is 171,792
bytes long.

-- 
Tim Roberts, timr at probo.com
Providenza & Boekelheide, Inc.