[NTG-pdftex] [pdftex-Bugs][4309] pdftex fails to include seemingly good PDF

[pdftex-bugs at sarovar.org]

Bugs item #4309, was opened at 2010-04-16 12:10
Status: Open
Priority: 3
Submitted By: The Thanh Han (hanthethanh)
Assigned to: Nobody (None)
Summary: pdftex fails to include seemingly good PDF 
Category: PDF inclusion
Group: None
Resolution: None


Initial Comment:
http://tug.org/pipermail/pdftex/2010-April/008357.html


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>Comment By: Hartmut Henkel (hhenkel)
Date: 2010-04-16 20:24

Message:
the PDF Ref. 5. ed writes in 3.2.9 Indirect Objects:

"Any object in a PDF file may be labeled as an indirect
object. [...] (for example, as an element of an array or as
the value of a dictionary entry)."

This can be interpreted, that as e. g., /Type1 is just such
a dictionary value (entry "/Subtype /Type1"), it's ok to
replace it by an indirect object reference.

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Comment By: Hartmut Henkel (hhenkel)
Date: 2010-04-16 20:12

Message:
maybe one should not be too picky and still keep copying 
probably illegal (?) things like /Subtype 2 0 R. You can try 
this with the attached file xx.tex, where the resulting PDF 
needs manual editing to replace e. g., /Font or /Type1 by a 
reference "1 0 R" or "2 0 R". Neither xpdf nor acrobat have 
any problems displaying such a PDF file! But when the 
/Subtype info from an embedded PDF is removed during 
embedding, a later application might well run into problems.
So maybe better keep it "garbage in -- garbage out".

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