diff --git a/examples/conversions_chaining.php b/examples/conversions_chaining.php
index 8bbebf4..a8384dd 100644
--- a/examples/conversions_chaining.php
+++ b/examples/conversions_chaining.php
@@ -20,7 +20,7 @@
 
 echo "Conversions done. Cost: {$cost}. Total files created: {$count}\n";
 
-$zipResult = ConvertApi::convert('zip', ['Files' => $jpgResult->getFiles()], 'any');
+$zipResult = ConvertApi::convert('zip', ['Files' => $jpgResult->getFiles()], 'file');
 
 $cost = $zipResult->getConversionCost();
 $count = count($zipResult->getFiles());
diff --git a/examples/convert_url_to_pdf.php b/examples/convert_url_to_pdf.php
index aa06962..ae86301 100644
--- a/examples/convert_url_to_pdf.php
+++ b/examples/convert_url_to_pdf.php
@@ -7,9 +7,9 @@
 ConvertApi::setApiCredentials(getenv('CONVERT_API_SECRET'));
 
 # Example of converting Web Page URL to PDF file
-# https://www.convertapi.com/web-to-pdf
+# https://www.convertapi.com/html-to-pdf
 
-$fromFormat = 'web';
+$fromFormat = 'html';
 $conversionTimeout = 180;
 $dir = sys_get_temp_dir();
 
diff --git a/examples/error_handling.php b/examples/error_handling.php
index 16dcf06..20a4aea 100644
--- a/examples/error_handling.php
+++ b/examples/error_handling.php
@@ -7,7 +7,8 @@
 ConvertApi::setApiCredentials(getenv('CONVERT_API_SECRET'));
 
 try {
-    $result = ConvertApi::convert('svg', ['File' => 'files/test.docx']);
+    # test.docx is not a PDF, so the API rejects this PDF split with a validation error
+    $result = ConvertApi::convert('split', ['File' => 'files/test.docx'], 'pdf');
 } catch (\ConvertApi\Error\Api $error) {
     echo "Got API error code: " . $error->getCode() . "\n";
     echo $error->getMessage();