Am 19.09.2011 11:32, schrieb Albert Astals Cid:
A Dilluns, 19 de setembre de 2011, Thomas Freitag vàreu escriure:
Am 19.09.2011 11:01, schrieb Albert Astals Cid:
A Dilluns, 19 de setembre de 2011, Denny Reeh vàreu escriure:
Hello,
i'm using pdftoppm -png to convert a pdf to png for showing in web
browsers. now, with the poppler release 0.17.3 pdftocairo was
introduced.
what are the differences between "pdftoppm -png" and "pdftocairo -png"
?
They use different rendering backends (poppler-splash vs poppler-cairo)
That's obviously for me. The more interesting questions for me is (I was
suprised by pdftocairo, too):
1. If I want to produce a png output,
a) which program produces the "correcter" output?
b) which program is faster?
Okay, nobody can probably answer this for all PDF. But are there any
experiences?
It depends on the pdf you use.
2. What is with futur bugs in png output? File them to splash or file
them to cairo?
If happens in both pdftoppm and pdftocairo is probably something not render
related so it's in the core, if happens only in one then it's obvious where
the bug is ;-)
It's funny that you believe that if it happens in cairo and splash it is
a core problem. The higher probability in my opinion is that we have a
bug in splash AND cairo :-)
BTW, I just compiled it with actually versions of cairo and poppler from
git, and then tried pdftocairo with ducks.pdf: I must admit that I will
continue pdftoppm for the moment :-) (Of course also, because I know
more about splash than about cairo).
Thomas
3. Are there any plans to support CMYK output with cairo (or does it
already support is)?
No idea about this.
4. pdftocairo has a PDF output option. What does this mean, when
producing a PDF with pdftocairo from a PDF? Something like a
"normalization"?
No idea about this either.
Albert
Thomas
Albert
Thanks,
Regards Denny Reeh
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