[reportlab-users] PDFs generated by ReportLab not printing

Marius Gedminas marius at gedmin.as
Tue May 26 08:46:44 EDT 2009

On Tue, May 26, 2009 at 10:22:30AM +0100, Robin Becker wrote:

> King Simon-NFHD78 wrote:

>>> -----Original Message-----

>>> From: King Simon-NFHD78 Sent: 22 May 2009 15:15

>>> To: 'Support list for users of Reportlab software'

>>> Subject: RE: [reportlab-users] PDFs generated by ReportLab not

>>> printing


>>> In case anyone is still following this thread, the error sounds

>>> suspiciously similar to the one described at

>>> http://pdfsharp.s3.bizhat.com/pdfsharp-ftopic339.html, which

>>> suggests that for Unicode fonts, you have to set the font encoding to

>>> Unicode. I'll see if I can figure out how to do that.


>> I'm still confused. As far as I can tell, TrueType fonts contain their

>> own encoding information, so there should be no need to specify an

>> encoding.


>> My simple PDF contains this:


>> % Font Arial Unicode MS subset 0

>> << /BaseFont /AAAAAA+ArialUnicodeMS

>> /FirstChar 0

>> /FontDescriptor 6 0 R

>> /LastChar 127

>> /Name /F2+0

>> /Subtype /TrueType

>> /ToUnicode 4 0 R

>> /Type /Font

>> /Widths [ 1000 1000 1000

>> ... Etc


>> There is no /Encoding key in there, but I've no idea whether there

>> should be.

> .........


> as we currently handle TTF fonts we are creating subsets each with their

> own encoding vector. Text using the font uses this encoding vector

> instead of a more standard form. We also create and output the ToUnicode

> object ie a mapping from our subset to unicode. I believe that's to allow

> for translation of our encoded strings into unicode for searching etc

> etc.


> FWIW I think the default is to have the first 128 entries of our first

> subset be equivalent to ascii 0-127. That allows for readability of the

> text strings in a common case.

Also, code 32 in a PDF font is always special and gets extra spacing.
This is used to implement paragraph justification.

Marius Gedminas
To express oneself
In seventeen syllables
Is very diffic
-- John Cooper Clark.
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