diff --git a/tasks/install-callas-pdf-engine.yml b/tasks/install-callas-pdf-engine.yml
index 04b9e9b8955ebbc6b4fc29699f7bf5f19d4c1a14..e5139161d5ae45c0c63d20d8e533db4d115a4b6b 100644
--- a/tasks/install-callas-pdf-engine.yml
+++ b/tasks/install-callas-pdf-engine.yml
@@ -16,15 +16,18 @@
     path: "/usr/local/lib/callas_pdfEngine_SDK_x64"
     state: directory
 
-# get latest version of callas PDFEngine at http://www.callassoftware.com/extranet/callas_pdfEngineSDK/callas_pdfEngineSDK_x64_Linux.tar.gz
+# get latest version of callas PDFEngine at
+# http://www.callassoftware.com/extranet/callas_pdfEngineSDK/callas_pdfEngineSDK_x64_Linux.tar.gz
 # downloading with unarchive will be deprecated, so we use a separate copy task
-# !!! CAUTION: DO NOT AUTOMATICALLY INSTALL NEW SDK VERSIONS WITHOUT RECOMPILING CGI-BIN FILES!!!
+# !!! CAUTION: DO NOT AUTOMATICALLY INSTALL NEW SDK VERSIONS WITHOUT RECOMPILING
+#              CGI-BIN FILES!!!
 - name: copy callas PDFEngine
   copy:
     src: "pdf_treatment/callas_pdfEngineSDK_x64_Linux_{{ vault_callas_sdk_version }}.tar.gz"
     dest: "/usr/local/lib/"
 
-# caution, don't extract to /tmp (https://github.com/ansible/ansible/issues/28569)
+# !!! CAUTION: DO NOT EXTRACT TO /tmp/
+# (https://github.com/ansible/ansible/issues/28569)
 - name: unpack callas PDFEngine
   unarchive:
     src: "/usr/local/lib/callas_pdfEngineSDK_x64_Linux_{{ vault_callas_sdk_version }}.tar.gz"
@@ -44,7 +47,6 @@
     recurse: true
     state: directory
 
-# symlink callas PDFEngine from '/home/lza/callas_pdfEngine_SDK_x64/lib' to '/usr/lib/cgi-bin/lib'
 - name: symlink callas PDFEngine from '/usr/local/lib/callas_pdfEngine_SDK_x64/*' to '/usr/lib/cgi-bin/*'
   file:
     src: "/usr/local/lib/callas_pdfEngine_SDK_x64/callas_pdfEngineSDK_x64_Linux_{{ vault_callas_sdk_version }}/{{ item }}"