Add shell script to rename PDFs by extracting customer numbers

- rename_pdfs.sh: Main script that renames PDFs based on content
- extract_customer.py: Helper script to extract customer number from PDF

rename_pdfs.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+# Script to rename PDF files based on customer number extracted from their content
+# Usage: ./rename_pdfs.sh [directory]
+# Default directory: output
+
+OUTPUT_DIR="${1:-output}"
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+FULL_DIR="$SCRIPT_DIR/$OUTPUT_DIR"
+
+if [ ! -d "$FULL_DIR" ]; then
+    echo "Error: Directory '$FULL_DIR' not found"
+    exit 1
+fi
+
+for pdf in "$FULL_DIR"/*.pdf; do
+    if [ -f "$pdf" ]; then
+        filename=$(basename "$pdf")
+        
+        # Extract text from PDF using Python and pypdf
+        result=$(python3 "$SCRIPT_DIR/extract_customer.py" "$pdf" 2>/dev/null)
+
+        if [ -n "$result" ]; then
+            new_name="${result}.pdf"
+            if [ "$filename" != "$new_name" ]; then
+                mv "$pdf" "$FULL_DIR/$new_name"
+                echo "Renamed: $filename -> $new_name"
+            fi
+        else
+            echo "Could not extract customer number from: $filename"
+        fi
+    fi
+done