Sample github workflow to generate pdf from md on every push, the result is in artifacts

action.yml

# .github/workflows/generate.yml
name: generate pdf
on: [push]
jobs:
  generate:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - run: sudo apt-get install pandoc texlive-latex-base texlive-fonts-recommended texlive-fonts-extra texlive-latex-extra
      - run: pip install weasyprint
      - run: pandoc --pdf-engine=weasyprint -o output.pdf input.md
      - uses: actions/upload-artifact@v3
        with:
          name: output.pdf
          path: output.pdf

From input.md this will generate output.pdf and upload it as output.pdf