[Poppler-bugs] [Bug 46880] Bitmap aliasing and coordinates precision

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=46880

--- Comment #5 from Jorge Hernández Valiñani <chocolate.camera at gmail.com> 2012-04-26 15:03:21 PDT ---
Created attachment 60639
  --> https://bugs.freedesktop.org/attachment.cgi?id=60639
Rendered sample (with Photoshop; void of artifacts)

I think you missed my points. I never talked about zooming:

1) I was pointing in the rendered sample to specific artifacts: there seem to
be specific lines causing a staircase effect, and it is **not** a problem of
poor antialiasing, as well as poor alignment of layers.

2) Those artifacts do not appear on Acrobat **when rendering at exactly the
same resolution**. They appear in pdftoppm's version but not Acrobat's **at
exactly the same ppi resolution**. I am aware that zooming in Acrobat would
re-render the page at higher ppi, but that is not what I was talking about.

Please open the rendered sample and observe the artifacts. Here I attach
another rendered sample, at exactly the same resolution (159) rendered with
Photoshop 12.1 (CS5.5), which renders similar to Acrobat and do not present
those artifacts.

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