How to convert PDF to PNG using DMagick?

[Tejas]

On Saturday, 25 September 2021 at 15:14:50 UTC, Mike Wey wrote:
> On 25-09-2021 15:21, tastyminerals wrote:
>> When I need to convert a PDF image in console, I use 
>> ImageMagick: `convert doc.pdf doc.png` command. Today I found 
>> ImageMagick D bindings -- DMagick 
>> https://github.com/MikeWey/DMagick. I would like to script 
>> this operation using DMagick. However, I couldn't find any 
>> code samples and was not able to find anything about image 
>> conversion in official ImageMagick C API docs either (maybe I 
>> need to spend more time though). But maybe someone has code 
>> samples of how to convert PDF?
>
> It's been awhile since i used it myself, but if imagemagick 
> supports reading PDF's this might work:
>
> ```
> Image pdf = new Image("./test.pdf")
> pdf.write("./test.png")
> ```
>
> DMagick hasn't been updated in a while so it will probably not 
> work with newer versions of ImageMagick.

For his personal use you think there's any problem just using 
`std.process`?
I mean:
```d
rdmd --eval='import std.process; auto dmd =  execute(["convert", 
`Screenshot from 2021-09-12 18-14-22.png` , `hello.pdf`]);'
```

I don't see why go beyond that if it's guaranteed that the user 
has `convert` on their machine