Came here to say this. Qpdf is my go-to for manipulating pdf files on the command line. Encrypting, decrypting, extracting and merging pages.

It's Apache-licensed and written in C++.

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voidmain0001 3 hours ago | parent [-]

How do you use qpdf for extraction when its README states “qpdf does not render PDFs or perform text extraction, and it does not contain higher-level interfaces for working with page contents.”

	▲	ratrocket 2 hours ago \| parent [-]
		Not the person you're replying to, but when they said "extraction" I believe they're talking about extracting pages from a PDF (like "splitting" the PDF apart, page-wise), not text. At least that's a thing I've used qpdf for in the past.