Install libpdf-fdf-simple-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libpdf-fdf-simple-perl
Perl module to read and write (Acrobat) FDF files
PDF::FDF::Simple helps creating and extracting the content of FDF files. It is meant to be a simple replacement for the Adobe FdfToolkit. Therefore some of its behavior, especially handling of diverse whitespace/newline artefacts, is orientated on FdfToolkit's handling. . After the extraction process the content is available within a hash reference. . For creating FDF files it currently only supports setting text values. Anyway, this should be enough to create FDF files for text fields, text areas, checkboxes and radio buttons. . PDF::FDF::Simple uses Parse::RecDescent and understands both the "Kids" notation and the "dotted" notation for field names. Saving will always use the "dotted" notation.