diff --git a/examples/conversions_chaining.py b/examples/conversions_chaining.py
index 9e61a36..183b186 100644
--- a/examples/conversions_chaining.py
+++ b/examples/conversions_chaining.py
@@ -13,7 +13,7 @@
 
 print("Conversions done. Cost: %s. Total files created: %s" % (jpg_result.conversion_cost, len(jpg_result.files)))
 
-zip_result = convertapi.convert('zip', { 'Files': jpg_result.files })
+zip_result = convertapi.convert('zip', { 'Files': jpg_result.files }, from_format = 'file')
 
 print("Conversions done. Cost: %s. Total files created: %s" % (zip_result.conversion_cost, len(zip_result.files)))
 
diff --git a/examples/convert_url_to_pdf.py b/examples/convert_url_to_pdf.py
index 8e44273..fd942a8 100644
--- a/examples/convert_url_to_pdf.py
+++ b/examples/convert_url_to_pdf.py
@@ -5,7 +5,7 @@
 convertapi.api_credentials = os.environ['API_TOKEN'] # your api token
 
 # Example of converting Web Page URL to PDF file
-# https://www.convertapi.com/web-to-pdf
+# https://www.convertapi.com/html-to-pdf
 
 result = convertapi.convert(
     'pdf',
@@ -13,7 +13,7 @@
         'Url': 'https://en.wikipedia.org/wiki/Data_conversion',
         'FileName': 'web-example',
     },
-    from_format = 'web',
+    from_format = 'html',
     timeout = 180,
 )