Bug 73183

Summary:	In small sizes, horizontal lines and glyphs are not in the same vertical position
Product:	poppler	Reporter:	Wilbert Berendsen <wbsoft>
Component:	splash backend	Assignee:	poppler-bugs <poppler-bugs>
Status:	RESOLVED MOVED	QA Contact:
Severity:	normal
Priority:	medium
Version:	unspecified
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:
Attachments:	A pdf file that can demonstrate the issue

Description Wilbert Berendsen 2013-12-31 06:38:34 UTC

As described in https://github.com/wbsoft/frescobaldi/issues/277 , sheet music (rendered by LilyPond) is not very well readable at small sizes, due to the fact that the horizontal lines are painted as single black lines and they are slightly offset w.r.t. glyphs that are positioned across these lines.

At larger sizes, the problem does not occur.

Programs using another poppler backend (such as Evince) do not suffer from this problem, which leads me to thinking it is an issue with the qt4 backend.

Comment 1 Wilbert Berendsen 2013-12-31 06:42:25 UTC

(using version 0.20)

Comment 2 Wilbert Berendsen 2013-12-31 06:47:27 UTC

to explain the images a little more: the horizontal lines are drawn one pixel too low at small zoom factors.

Comment 3 Adrian Johnson 2013-12-31 07:01:14 UTC

Can you attach a PDF file that we can use to reproduce the problem?

Comment 4 Wilbert Berendsen 2013-12-31 07:06:45 UTC

Created attachment 91357 [details]
A pdf file that can demonstrate the issue

Comment 5 Albert Astals Cid 2013-12-31 09:52:07 UTC

Are you using the Arthur or the Splash backend?

Comment 6 Wilbert Berendsen 2013-12-31 10:25:17 UTC

I am using the Splash backend (page.renderToImage).

Comment 7 Albert Astals Cid 2013-12-31 10:30:54 UTC

Then assign it to the splash backend :)

Comment 8 GitLab Migration User 2018-08-21 10:43:24 UTC

-- GitLab Migration Automatic Message --

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