Hello,
i tried Rust a few days ago and i find it really awesome. 
I would like to know if it is possible to build a little programm that can convert PDF Files to PNG or JPG.
I searched google and this forum but didn't found an answer. I looked arround at https://crates.io
It seems that printpdf can convert to images but only in bpm.
Once you get raw image data (e.g. Vec<u8> of RGB(A)), it should be fairly easy to use different crates to work with different formats.
PDF is a complex monster, and conversion to a raster format requires supporting all of that complexity. I don't think there's a Rust crate for this yet. There are only a handful libraries in the world that can do that.
printpdf can't create an image from a PDF. It can create a PDF with an image embedded — that's the other direction.
PDF is fun. No, not really.
I am coauthor of
It works on most files, for rasterizing, you would have to use raqote or figure out how to get the off-screen renderer in pathfinder to work.
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