Added deps and compression

scan.sh

@@ -1,5 +1,18 @@
 #!/bin/bash
 
+# Function to install dependencies
+install_deps() {
+  echo "Installing dependencies..."
+  sudo apt-get update
+  sudo apt-get install -y sane-utils imagemagick ghostscript
+}
+
+# Check for -i flag to install dependencies
+if [[ "$1" == "-i" ]]; then
+  install_deps
+  exit 0
+fi
+
 while true; do
   # Store the start time to determine which TIFF files were created by this script
   START_TIME=$(date +%s)
@@ -28,7 +41,16 @@ while true; do
   echo "Converting scanned files to PDF..."
   convert *.tiff "$DOC_NAME"
 
-  echo "Done. Document saved as $DOC_NAME. Scanned $page_count page(s)."
+  # Compress the PDF file
+  echo "Compressing PDF file..."
+  compressed_doc_name="${DOC_NAME%.*}_compressed.pdf"
+  gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/ebook -dNOPAUSE -dQUIET -dBATCH -sOutputFile="$compressed_doc_name" "$DOC_NAME"
+
+  # Delete the original PDF file
+  rm "$DOC_NAME"
+
+  # Display final size of the PDF file
+  echo "Done. Document saved as $compressed_doc_name. Scanned $page_count page(s). Final size: $(du -h "$compressed_doc_name" | cut -f1)"
 
   # Clean up TIFF files
   cleanup