add pdf reader

app.py

@@ -26,3 +26,15 @@ print(current_working_directory)
 st.write('current dir:', current_working_directory)
 arr = os.listdir('.')
 st.write('dir contents:',arr)
+
+def print_response(response: str):
+    print("\n".join(textwrap.wrap(response, width=100)))
+
+pdf_loader = UnstructuredPDFLoader("./pdfs/Predicting issue types on GitHub.pdf")
+pdf_pages = pdf_loader.load_and_split()
+st.write('total pages from PDFs:', len(pdf_pages))
+text_splitter = RecursiveCharacterTextSplitter(chunk_size=2000, chunk_overlap=512)
+texts = text_splitter.split_documents(pdf_pages)
+st.write('total chunks from pages:', len(texts))
+
+