diff --git a/.gitignore b/.gitignore
index 68bc17f..66e8f66 100644
--- a/.gitignore
+++ b/.gitignore
@@ -158,3 +158,5 @@ cython_debug/
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
+
+tmp/
\ No newline at end of file
diff --git a/README.md b/README.md
index 0324b73..2135f3f 100644
--- a/README.md
+++ b/README.md
@@ -24,5 +24,6 @@ Run streamlit run app.py
 
 - Streamlit
 - HuggingFace
+- ChromaDB
 - pymupdf for pdf extraction
 - An open ai openapi key
diff --git a/app.py b/app.py
index 49bd53d..0e8a5c9 100644
--- a/app.py
+++ b/app.py
@@ -1,18 +1,53 @@
 """ A simple example of Streamlit. """
-import streamlit as st
+from datetime import datetime as Date
+import chromadb
 import fitz
+import streamlit as st
 
-# from tika import parser
 # from openai import OpenAI
 
-# client = OpenAI(api_key=os.getenv("OPENAI_API_KEY"))
+chroma_client = chromadb.PersistentClient(path="tmp/chroma")
+chroma_client.heartbeat()
+
+collection = chroma_client.get_or_create_collection("pdf-explainer")
+
+# Query ChromaDb
+query = st.text_input("Query ChromaDb", value="", placeholder="Enter query")
+if st.button("Search"):
+    results = collection.query(
+        query_texts=[query],
+        n_results=3,
+    )
+
+    for idx, result in enumerate(results["documents"][0]):
+        st.markdown(
+            result[0:150]
+            + "..."
+            + "**Source:** "
+            + results["metadatas"][0][idx]["source"]
+        )
+
 
 pdf = st.file_uploader("Upload a file", type="pdf")
 
-if st.button("Extract text"):
+
+if st.button("Save"):
     if pdf is not None:
         with fitz.open(stream=pdf.read(), filetype="pdf") as doc:  # open document
             text = chr(12).join([page.get_text() for page in doc])
-            st.write(text)
+            st.write(text[0:200])
+            collection.add(
+                documents=[text],
+                metadatas=[{"source": pdf.name}],
+                ids=[pdf.name + str(Date.now())],
+            )
     else:
         st.write("Please upload a file of type: pdf")
+
+
+if st.button("Chroma data collection"):
+    st.write(collection)
+
+if st.button("Delete Chroma Collection"):
+    chroma_client.delete_collection(collection.name)
+    st.write("Deleted Chroma Collection")
diff --git a/requirements.txt b/requirements.txt
index 9b9fde5..bcbff57 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,8 @@
 openai
+tiktoken
 langchain
 pymupdf
+pypdf
 chromadb
 sentence_transformers
 streamlit
\ No newline at end of file
diff --git a/wk_flow_requirements.txt b/wk_flow_requirements.txt
index 7a2e995..2389c28 100644
--- a/wk_flow_requirements.txt
+++ b/wk_flow_requirements.txt
@@ -1,3 +1,4 @@
 streamlit
 pymupdf
-pylint
\ No newline at end of file
+pylint
+chromadb
\ No newline at end of file