How to convert all jpg/jpeg/png files from a directory and subfolders to PDF?

Question

Data conversion

There is a root directory which contains images.
for example

F:.
├───директория_1
├───директория_2
│   └───директория_2_1
│       └───директория_2_1_1
├───директория_3
└───директория_4
    └───директория_4_1

I need to find some (preferably OpenSource) product that will find all the files in this folder and its child directories, convert it to PDF format, save it to the same path, with the same name (of course with a different extension) and delete the original files.
For someone who can help, I can donate for a beer, if the details are struck in the LAN :3

Answer 1

> I need to find some (preferably OpenSource) product that will find all the files in this folder and its child directories, convert to PDF format
ImageMagic converts. And you can organize the search for files using for.
For precise instructions in Google, there is nothing abstruse there.