It (the software) divides the page into some slides and makes a video out of them.
Is it a correct usage of "out of"? as I searched out of means to create something of value from nearly worthless parts. Can I use from here?
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"It (the software) divides the page into slides and makes a video out of them."
This is correct. Please note that I have removed the word "some," which isn't necessary.
You can also write:
"It (the software) divides the page into slides and makes a video from them.
This is also correct, so you are right!
You did a good job constructing the statement and asking about the use of "from" as an alternative to "out of." Of the two, the first example is the most clear and immediately understandable to me, but both are correct and would work well for you. Developing skill in writing clear descriptions of software is an excellent practice, as much that is written is difficult for ordinary people like me to understand.