diff --git a/add-metadata.py b/add-metadata.py
new file mode 100755
index 0000000..6a3a737
--- /dev/null
+++ b/add-metadata.py
@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+
+#procedura napisywania plików ipynb (generowanie nagłówka i metadanych)
+import json
+import sys
+
+
+def modjup(filen,numer,tytul,typ,author,email,lang,title,year):
+    zerocell=['![Logo 1](https://git.wmi.amu.edu.pl/AITech/Szablon/raw/branch/master/Logotyp_AITech1.jpg)\n',
+              '<div class="alert alert-block alert-info">\n',
+              '<h1> %s </h1>\n'%(title),
+              '<h2> %s. <i>%s</i>  [%s]</h2> \n'%(numer,tytul,typ),
+              '<h3> %s (%s)</h3>\n'%(author,year),
+              '</div>\n',
+              '\n',
+              '![Logo 2](https://git.wmi.amu.edu.pl/AITech/Szablon/raw/branch/master/Logotyp_AITech2.jpg)']
+    zerodict={'cell_type': 'markdown','metadata': {'collapsed': False},'source': zerocell}
+    with open(filen, 'r+',encoding='utf-8') as f:
+        ll=json.load(f)
+        ll["metadata"]["author"]=author
+        ll["metadata"]["email"]=email
+        ll["metadata"]["lang"]=lang
+        subtitle="%s.%s[%s]"%(numer,tytul,typ)
+        ll["metadata"]["subtitle"]=subtitle
+        ll["metadata"]["title"]=title
+        ll["metadata"]["year"]=year
+
+        if not(ll['cells'][0]['source'][0]==zerocell[0]):
+            ll['cells'].insert(0,zerodict)
+        else:
+            ll['cells'][0]=zerodict
+        f.seek(0)
+        json.dump(ll,f,indent=4)
+
+#zmodyfikuj te dane
+filen=sys.argv[1]
+
+numer="2"
+tytul=sys.argv[2]
+typ="wykład"
+
+author="Filip Graliński"
+email="filipg@amu.edu.pl"
+lang= "pl"
+title="Ekstrakcja informacji"
+year="2021"
+
+#uruchom procedurę
+modjup(filen,numer,tytul,typ,author,email,lang,title,year)