[pdftex] does TEX destroy valid PDF syntax ?

[Martin Schröder]

2010/4/7 Martin Schröder <martin at oneiros.de>:
> This is illegal.

And pdftex 1.50 gives a warning:
pdfTeX warning: pdflatex (file ./CANON_test.pdf): PDF inclusion:
invalid other resource which is
no dict (key 'Subtype', type <stream>); copying it anyway.

Best
    Martin