modified: .gitignore

modified:   QUICKSTART.md
	modified:   app.py
	new file:   output/.gitkeep
	modified:   static/css/style.css
	modified:   static/js/images-to-pdf.js
	modified:   templates/images_to_pdf.html
	new file:   uploads/.gitkeep

.gitignore

@@ -160,3 +160,27 @@ cython_debug/
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
 
+# PDF Web App specific - Ignore upload and output contents but keep directories
+uploads/*
+!uploads/.gitkeep
+output/*
+!output/.gitkeep
+
+# IDEs
+.vscode/
+.idea/
+
+# OS specific
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Temporary files
+*.tmp
+*.temp
+*.bak
+