Support for converting pdf to png

[ankitrshah89]

Hi @eivindfjeldstad ,

Does imagemagick-stream support converting PDFs to images?

I wrote a test for the same :

const im = require('imagemagick-stream');
const fs = require('fs');

const read = fs.createReadStream(__dirname + '/pdfs/samplePdf.pdf');
const write = fs.createWriteStream(__dirname + '/pdfs/image-resized.png');

const resize = im();
read.pipe(resize).pipe(write);

Unfortunately I got this error:
events.js:141
throw er; // Unhandled 'error' event
^

Error: convert: no decode delegate for this image format ' @ error/constitute.c/ReadImage/508. convert: no images defined-' @ error/convert.c/ConvertImageCommand/3235.

at ImageMagick.onerror (/srv/package/node_modules/imagemagick-stream/index.js:273:31)
at emitOne (events.js:77:13)
at Socket.emit (events.js:169:7)
at readableAddChunk (_stream_readable.js:146:16)
at Socket.Readable.push (_stream_readable.js:110:10)
at Pipe.onread (net.js:523:20)

I tried to use convert which got installed as part of imagemagick through cli and I could successfully convert it.

Any ideas?

Thanks!

[tero]

@ankitrshah89 Did you resolve this? Got same issue when trying to convert svg to jpeg.

[WaldoJeffers]

@ankitrshah89 I think you need to install ghostscript
brew install ghostscript

I had the same issue & this solved it for me

[AlexanderButyaev]

What about multipage PDFs? how to pipe it in different files?