Generate PDF file at PR stage

.github/workflows/pdf-at-pr.yaml

@@ -0,0 +1,38 @@
+# This workflow will install Python dependencies and generate PDF file at PR
+name: Create offline documentation on PR
+
+on:
+  pull_request:
+    types: [opened, reopened, synchronize, labeled]
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [ 3.8 ]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install setuptools wheel
+          pip install -r requirements.txt
+      - name: Run mkdocs --clean
+        run: |
+          mkdocs build --clean
+
+      - name: Upload pdf
+        uses: actions/upload-artifact@v4
+        with:
+          name: artifact
+          path: site/pdf/document.pdf
+