The free graphics editor Inkscape is a powerful PDF editor. It can be used to change / enhance figures embedded in PDF documents, without the need of having the source data using to produce the plot.
Suppose there is a given plot in a paper and you want to use it in a talk or another document. Suppose that you would like to change the color of a line, or make the points thicker etc. That is easy with Inkscape. If the plot was embedded in the PDF including vectorial data, then you can change all its properties by opening the PDF file in Inkscape, making the changes (the interface is intuitive) and then exporting it as a PDF, PNG etc.
Inkscape is available for Mac OS X, Linux and Windows.
Friday, February 26, 2010
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