vector to png

[Jack]

Hi guys

I'm just getting started with imagemagick so please bear with me : ]

I've been trying to convert a vector pdf into a png. The width of the png should be exactly 900 pixels.

this is the command I tried, however the png is always around 200 pixels (the size the pdf was encoded at):

Code: Select all

convert -size 900 test.pdf test.png

I also tried -resize, but that resized the png file instead of the pdf, introducing scaling artifacts.

what am I doing wrong?

[magick]

Try the -density option, for example,

• convert -density 100 image.pdf image.png

[Jack]

so there's no way to specify an absolute pixel amount for the output?

I guess I'll have to create a really big png using the density option, and then downsample it to the absolute size I need. Is that correct?

thanks

[magick]

That would work. Super-sample the image with the -density option then resize to your absolute dimensions with -resize.

[Jack]

ok, thanks for your help!