The PDF standard says that there are a set of tables that are REQUIRED in the 
PDF - OS/2 isn't one of them. 

Otherwise, everything else you saw is correct.

Leonard

-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of 
suzuki toshiya
Sent: Tuesday, June 07, 2011 4:14 AM
To: [email protected]
Subject: Re: [poppler] pdftohtml : enhancing it to use embedded fonts

I guess, what Leonard said would be: Type42 font format does not require to 
preserve "OS/2" table, so PDF or Type42 embedded font cannot convey the 
permission info. Although PDF is new technology and I wish if it can hold such 
info, the lack of such info in
Type42 is reasonable, because it might have been designed when most TrueType 
didn't have OS/2 table.

I will check if there is more appropriate way to convey the info.

Albert Astals Cid wrote:
> A Tuesday, June 07, 2011, Leonard Rosenthol va escriure:
>> If the flags are there, you can use them - the problem is that many 
>> PDF creators remove them :(.
> 
> If the flags are not there, it means we are allowed to use the font, right?
> The specification says so.
> 
> I wonder why all that font copyright holders are not sueing those many 
> PDF creators that strip the protection from their files.
> 
> Albert
> 
> 
> 
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