npm

pdftk-java

Java-based PDF toolkit for manipulating PDF documents

brewmacoslinux
Try with needOr install directly
Source

About

Port of pdftk in java

Commands

pdftk

Examples

Merge multiple PDF files into one$ pdftk file1.pdf file2.pdf file3.pdf cat output merged.pdf
Split a PDF into individual pages$ pdftk input.pdf burst output page_%04d.pdf
Fill PDF form fields with data$ pdftk form.pdf fill_form data.fdf output filled.pdf