How can I convert an image (jpg, png) to pdf?

Question

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I need to merge pictures into one pdf, so that the pictures keep their resolution
Like here

I tried to use gofpdf , but it didn't work to insert the image while keeping its resolution

Two ways come to mind to do this
1. Create a pdf, go through the desired pictures and add them to pdf (but I don't know how to save the resolution)
2. Go through the desired pictures and convert each to pdf, and then combine them into one pdf (couldn't find a way to convert)

Answer 1

ImageMagick does everything you need and a lot of things you will never need. You just need to deal with it once.

Answer 2

I don’t know how you searched and where, but gofdfd has the ability to add images anywhere, with any size of this very image
https://github.com/jung-kurt/gofpdf/blob/master/fp...