[poppler] Wrong hinting

[Harry Roberts]

Linked is a reference rendering using a reasonably recent Poppler Git
checkout (0.16), I tried to output it at the same size as your screenshot.
-- http://i.imgur.com/NZoEv.jpg

The image was rendered using the splash backend at 1686x1686 with line
antialiasing disabled and Xft hinting/antialiasing enabled, then re-sampled
to 843x843 (related note: I've found this method to provide print-production
quality renderings in even the most obscenely complex PDFs)

I'm not seeing the same problems when viewing in Apple Preview or Google
Chrome's PDF viewer on OSX either.

On 14 February 2011 00:22, Cedric Sodhi <manday at gmx.net> wrote:

> Hello list,
>
> I've spent all night trying to resolve this problem without any success.
> I'll keep it short and hopefully clear.
>
> The following screenshot depicts the problem:
>
> http://ompldr.org/vN2V5Nw
>
> In words: At a certain zoom level (or range thereof), in this particular
> case approximately 80% to exactly 111% the text looks crisp, completely
> mis-antialiased and hinted.
>
> From 111% to 112% the text suddenly becomes strong and clearly readable.
> Below approximately 80% the text also becomes better readable.
>
> The font in this document is embedded. You can find the document here:
>
> http://ompldr.org/vN2V2ag/edited.pdf
>
> Because it is embedded, changing Xft configuration does, provenly, have
> no effect on the rendering.
>
> I failed to find any solution. This has been tested by multiple people
> with multiple poppler-based pdf viewers. There is no clear pattern to
> under which circumstances (meaning configuration - though all people
> allegedly used the default configuration) and with which exact readers
> this happens.
>
> It has reportedly been working fine with ZATHURA and OKULAR. I do have
> the problem with ZATHURA and EPDFVIEW (could not try any other reader
> personally, yet).
>
> Any hints to how to resolve this problem would be greatly appreciated.
> If you require further information or I've forgotten to provide
> important info, please reply either to the list or directly and I'll
> submit the required info to the list.
>
> Thank you.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/poppler/attachments/20110214/9d767e9a/attachment.html>