The tools include the following utilities:
- pdftotext -- converts PDF to text;
- pdftops -- converts PDF to PostScript;
- pdftoppm -- converts PDF pages to netpbm (PPM/PGM/PBM) image files;
- pdftopng -- converts PDF pages to PNG image files;
- pdftohtml -- converts PDF to HTML;
- pdfinfo -- extracts PDF metadata;
- pdfimages -- extracts raw images from PDF files;
- pdffonts -- lists fonts used in PDF files;
- pdfdetach -- extracts attached files from PDF files.
The Xpdf open source project includes a PDF viewer along with a collection of command line tools which perform various functions on PDF files.
32 or 64-bit Xpdf Tools latest v4.03 for Windows, released 2021-01-28, can be downloaded from http://www.xpdfreader.com/download.html.
Lastly, I posted Xpdf Tools full changelog (included in the 'CHANGES' file in downloaded package) to https://pastebin.com/W62Q78Bt.