Re: [Matplotlib-users] Pdf File sizes on newer versions of matplotlib is a lot larger

[Jeffrey S. <jef...@gm...>]

My results for running that small code snippet is below so I actually get
quite different results with the two different backends. Any idea what
could be the cause?

Creator:        cairo 1.10.2 (http://cairographics.org)
Producer:       cairo 1.10.2 (http://cairographics.org)
Tagged:         no
Pages:          1
Encrypted:      no
Page size:      245.081 x 151.466 pts
File size:      4586 bytes
Optimized:      no
PDF version:    1.5


Creator:        matplotlib 1.3.0rc2, http://matplotlib.org
Producer:       matplotlib pdf backend
CreationDate:   Wed Jul 31 04:09:34 2013
Tagged:         no
Pages:          1
Encrypted:      no
Page size:      245.081 x 151.466 pts
File size:      49126 bytes


On Wed, Jul 31, 2013 at 3:43 AM, Eric Firing <ef...@ha...> wrote:

> On 2013/07/29 9:17 PM, Jeffrey Spencer wrote:
> > I have three different versions of matplotlib that all output different
> > file sizes with matplotlib 1.1.1 providing the smallest. This is for the
> > same exact script. I can post the script if that helps.
> >
> > MPL 1.4.x: 539.32kb, Ubuntu 12.10
> > MPL 1.1.1: 172.56kb Ubuntu 12.10
> > MPL 1.2.1: 475.9kb, Ubuntu 13.04
> >
> > Is there a reason for this or why would such different file sizes be
> > produced?? Also I tried using the matplotlib.use('cairo') with no
> > difference. It actually says that the cairo backend is selected but the
> > outputted pdf files show the matplotlib pdf backend was used.
> >
>
> I can't reproduce this failure to produce a pdf file with cairo.  With
> mpl 1.4.x,
>
> import matplotlib
> matplotlib.use('cairo')
> import matplotlib.pyplot as plt
> plt.plot([1,2,3])
> plt.savefig("test.pdf")
>
> The result is
>
> efiring@manini3:~$ pdfinfo test.pdf
> Creator:        cairo 1.10.2 (http://cairographics.org)
> Producer:       cairo 1.10.2 (http://cairographics.org)
> Tagged:         no
> Pages:          1
> Encrypted:      no
> Page size:      576 x 432 pts
> File size:      5261 bytes
> Optimized:      no
> PDF version:    1.5
>
> Repeating but without specifying the cairo backend I get:
>
> efiring@manini3:~$ pdfinfo test_default.pdf
> Creator:        matplotlib 1.4.x, http://matplotlib.org
> Producer:       matplotlib pdf backend
> CreationDate:   Mon Jul 29 21:51:22 2013
> Tagged:         no
> Pages:          1
> Encrypted:      no
> Page size:      576 x 432 pts
> File size:      5184 bytes
> Optimized:      no
> PDF version:    1.4
>
> Eric
>
>
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