Add script to convert HTML files to PDF

Introduces htmltopdf.py, a Python script that converts HTML files matching given patterns to PDF using xhtml2pdf. The script supports wildcard patterns, handles errors, and provides user feedback during processing.

Author: feureau

Programming/htmltopdf.py

@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+import sys
+import os
+import glob
+from xhtml2pdf import pisa
+
+def convert_html_to_pdf(file_patterns):
+    # 1. Collect all files based on patterns
+    files_to_process = []
+    for pattern in file_patterns:
+        # glob expands the wildcard pattern for Windows terminals
+        matches = glob.glob(pattern)
+        if not matches:
+            print(f"Warning: No files found matching pattern '{pattern}'")
+        files_to_process.extend(matches)
+
+    files_to_process = sorted(list(set(files_to_process)))
+
+    if not files_to_process:
+        print("No files to process.")
+        return
+
+    print(f"Found {len(files_to_process)} files. Starting conversion...\n")
+
+    # 2. Process files
+    for input_file in files_to_process:
+        base_name = os.path.splitext(input_file)[0]
+        output_file = f"{base_name}.pdf"
+
+        print(f"Converting: {input_file} -> {output_file}")
+        
+        try:
+            # Open input file (HTML) and output file (PDF)
+            with open(input_file, "r", encoding='utf-8') as source_html:
+                with open(output_file, "wb") as result_pdf:
+                    # Convert
+                    pisa_status = pisa.CreatePDF(
+                        source_html,                # the HTML file handle
+                        dest=result_pdf             # the PDF file handle
+                    )
+
+            # Check for errors in the conversion log
+            if pisa_status.err:
+                print(f" [ERROR] Failed to convert {input_file}")
+            else:
+                print(f" [OK] Saved {output_file}")
+
+        except Exception as e:
+            print(f" [EXCEPTION] Error converting {input_file}: {e}")
+
+    print("\nProcessing complete.")
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print("Usage: python htmltopdf.py <file_pattern>")
+        print("Example: python htmltopdf.py *.html")
+    else:
+        convert_html_to_pdf(sys.argv[1:])