I am generating pdfs with Perl and PDF::API2. How can I get my pdf to be CMYK? Currently my pdfs all come out as RGB according to ImageMagick's identify command.
PDF::API2 allows colors to be entered as RGB or CMYK, and will output whatever you pass into it.
To enter a CMYK color, use the pattern %CCMMYYKK instead of #RRGGBB (note the percent sign instead of the number sign).
For example, you can set "true black" as follows:
$content->fillcolor('%000000FF');
PDF::API2::Util also has an undocumented RGBtoCMYK function. I have no idea if it's accurate, and it's undocumented, so use at your own risk, but it might be useful as a one-time way to convert your existing RGB colors to CMYK.
Related
So recently I decided to not use the standard markers that Matlab provides and use my own via: a set of fonts including Webdings or WingDings. I make a standard scatter plot, and plot the text (in wingdings), using the text command, over the locations of the markers.
When I save these plots as png files, they print perfectly. They also appear perfectly on my screen after plotting.
However when I save these plots as eps files, the webdings are turning into their original letters 'l' or 'w'. It also looks like it's plotting them in a Courier font, but my default is Helvetica.
I've read through this previous post, but my question differs in that he is looking to use Latex as the interpreter and to include fonts, whereas I don't want to use Latex as the interpreter. However, it seems like my default interpreter (not sure what that is), isn't doing the job when converting to EPS.
Example:
imageR='w'
text(xf2,yf2,imageR,'fontName',font,'FontSize',fontR,'HorizontalAl','left','color','w')
I figured it out....took me way too long.
Ghostscript / Postscript only export with a few fonts when you are exporting eps files.
This link was incredibly helpful.
I just switched from wingdings/webdings to ZapfDinbats...Practically the same thing...
According to the MATLAB manual, when you save a figure using print or by choosing file|save, if you choose the painters renderer and save to PDF or EPS vector formats, all fonts get substituted. Is there a way to get around this limitation?
Whenever I output a figure, whether I use print or export_fig, the fonts get substituted, and so they no longer match the fonts in the document that I plan on putting the figure into. I would prefer to keep them in a vector format, because I use LaTeX and so I want to be able to use the same figures in my documents as in my beamer presentations and have them scale nicely without bloating the file size.
If I'm reading that link correctly, not all fonts get substituted. From 'Choosing a Printer Driver':
The table below lists the fonts supported by the MATLAB PostScript and Ghostscript drivers when generated with the Painters renderer (fully vectorized output). This same set of fonts is supported on both Windows and UNIX:
AvantGarde
Helvetica-Narrow
Times-Roman
Bookman
NewCenturySchlbk
ZapfChancery
Courier
Palatino
ZapfDingbats
Helvetica
Symbol
So, if you use one of the above fonts, the output vector-format figure should maintain the correct font. See for example:
list_fonts = listfonts
figure('renderer','painters'),
plot(peaks),
xlabel('this font is Helvetica','fontname','Helvetica','fontsize',24)
set(gcf,'paperpositionmode','auto')
print(gcf,'-depsc2','test1.eps')
Which produces:
So, choose one of the fonts from the list above, and the font will be output correctly. Otherwise, change the font in your presentation to match one of the above fonts.
I also encountered this problem for many times, and I have an simple but effective way that never fails me (on Windows, need GSview).
1) save fig as PDF
2) save PDF as ps
3) open ps with GSview, then click "File->PS to EPS", specify a file name and done.
Hope this helps.
I am about the create a bunch of SVG graphics with (probabably) a perl script. These SVG graphics will contain text blocks. Since I want to "connect" such text blocks (of varying widths) with lines I'd like to know what width a text will be so that I can draw the connecting lines' length accordingly.
I have seen in SVG get text element width that it could be possible with java script. But that's probably not what I am after since I don't intend to host the SVG in a browser.
So, I thought that maybe there's a way to find out the desired width at the script's runtime. If someone can point me to a solution (also outside the realm of perl but on windows), I'd be very gratefu.
I did that exactly that about a year ago using PDF::API2 and advancewidth function: https://metacpan.org/module/PDF::API2::Content#width-txt-advancewidth-string-text_state-
Note that you need to correlate DPI of PDF and SVG: they may be different (I actually did that just dividing values by 1.25, you can be better).
PDF::API2 gives you very accurate values that works for Inkscape (in my case) well.
How do I change the resolution of my MATLAB graphs? The default seems to be 96x96 PPI.
You can save using the print command; here's how:
h1=figure;
your plotting commands here
print(h1,'-djpeg','-r150','filename')
The -r150 argument sets the resolution to 150 DPI. you can set it higher or lower depending on your need. This is assuming you're saving as a JPEG. If not, there are other options such as -dpng for PNG, -dbmp for 24-bit bitmap, etc. more can be found in the help section for print.
That said, if your plot consists only of lines, I would recommend using -depsc which saves it as an EPS file, which is scalable and lossless. You also won't have to define a resolution, so you can simply do
print(h1,'-depsc','filename')
You can convert this EPS file to PDF and retain the same resolution, yet have portability between applications and platforms. I wouldn't recommend saving to PDF directly as MATLAB puts additional white spaces around the plot, wheras the EPS bounding box is tight, and looks neat.
Changing a Figure's Settings: Setting the resolution
Matlab prints figures in either black/white or color. A black/white print of a figure is NOT the same as a color print tweaked to black/white: every color including the light ones is translated as black. (Light colors that look good on screen or a color printer look horrible on a black/white printer)
I would like to print a PDF file of a figure. My problem is that there doesn't seem to be a PDF driver for MATLAB that outputs black/white rather than color.
See the print command: -dpdf is the PDF driver but it is color.
Is there any way I can do this?
(edit: http://www.mathworks.com/access/helpdesk/help/techdoc/creating_plots/f3-84337.html#f3-99776 shows the interactive way of doing this, but I need a programmatic method, otherwise it will get tedious rather quickly.)
You can fully automate the print process: http://UndocumentedMatlab.com/blog/customizing-print-setup/
You could convert it to an EPS (-deps or -deps2) and then use eps2pdf (which uses GhostScript) to convert that into a PDF. I generally convert all my figures to this way.