Saving heatmap as pdf resolution

General Usage
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1

I’m trying to save a simple 100x100 heatmap as a pdf. When I do, the heatmap ends up looking blurry in the saved image. Just doing

heatmap(rand(100,100))
savefig("stuff.pdf")

saves a pdf with the axis labels, colorbar, etc looking fine but the heatmap itself blurry. Doing savefig("stuff.png") also turns out fine, but I need it as a vectorized image.

Hoping this is a quick fix, thanks in advance.

2

This often has to do with the backend plotting package; do you know which one you are using? Potentially GR that is the usual default that comes with Plots.jl?

3

gr() but I’ve also tried plotlyjs()

4

You might try pgfplotsx ?

5

It depends on which PDF viewer you use to view the result. With Acrobat Reader the heatmap (internally handled as an image) should not be interpolated.