colorbar problem in 2014b when printing pdf

When I make a colorbar and print as pdf, it has an artifact that looks like a white dashed line. I think it is where two parts of the colorbar image meet. Any ideas for a work around?

colorbar
print('-dpdf','test.pdf')

[Chad Greene]

Interesting. I get the same result.

[Christopher Benwell]

I also have this problem. Has anyone found a workaround for it? It is quite incredible how often Mathworks manage to introduce new problems with their updates.

Answer 1

[Jan]

Is this a problem of Matlab or does it depend on the PDF viewer? See http://www.mathworks.com/matlabcentral/answers/15388-artifacts-in-figures-exported-as-pdf-from-matlab .

[Michael]

Good question. It does not seem to depend on the viewer (or the smoothing options).

[Travis]

Beautiful!!! First time I have found someone actually point the way to the fix. Thank you.

[Leo OfNature]

Sorry, but fixing the pdf viewer is not a satisfactory answer, given that that most pdf viewer are configured by default to make this deffect appears... WRONG answer!

Answer 2

[Bing Yuan]

In matlab2016, adding the following line removes the dashed line in the colorbar, although the size of the output file changes:

    set(gcf, 'Renderer', 'opengl') % remove grids for contourf and the dashed line in colorbar when saving pdf/eps. in matlab2016a.

It might also work for matlab2014b.

[Michael]

I can confirm that the default pdf created in 2015a still has the artifact and that using the OpenGL renderer removes it. Using the OpenGL renderer also means you get a bitmap embedded in a pdf, so poorer quality.

[Leo OfNature]

Yes, but the quality get so poor that it doesn't worth anymore to export as a vecrorized graphics...

Answer 3

[Michael Tippett]

And I've confirmed that Matlab 2016a still has the artifact if vector graphics are used (no embedded bitmap). Sad.