feat: Add support for passing pdf path as source

requirements.txt

@@ -18,3 +18,4 @@ playwright==1.43.0
 langchain-aws==0.1.2
 langchain-anthropic==0.1.11 
 yahoo-search-py==0.3
+pypdf==4.2.0

scrapegraphai/graphs/pdf_scraper_graph.py

@@ -56,36 +56,29 @@ class PDFScraperGraph(AbstractGraph):
         """
 
         fetch_node = FetchNode(
-            input="pdf_dir",
+            input='pdf',
             output=["doc"],
-            node_config={
-                "headless": self.headless,
-                "verbose": self.verbose
-            }
         )
         parse_node = ParseNode(
             input="doc",
             output=["parsed_doc"],
             node_config={
                 "chunk_size": self.model_token,
-                "verbose": self.verbose
             }
         )
         rag_node = RAGNode(
             input="user_prompt & (parsed_doc | doc)",
             output=["relevant_chunks"],
             node_config={
-                "llm": self.llm_model,
+                "llm_model": self.llm_model,
                 "embedder_model": self.embedder_model,
-                "verbose": self.verbose
             }
         )
         generate_answer_node = GenerateAnswerNode(
             input="user_prompt & (relevant_chunks | parsed_doc | doc)",
             output=["answer"],
             node_config={
-                "llm": self.llm_model,
-                "verbose": self.verbose
+                "llm_model": self.llm_model,
             }
         )
 

scrapegraphai/nodes/fetch_node.py

@@ -5,6 +5,7 @@ FetchNode Module
 from typing import List, Optional
 from langchain_community.document_loaders import AsyncChromiumLoader
 from langchain_core.documents import Document
+from langchain_community.document_loaders import PyPDFLoader
 from .base_node import BaseNode
 from ..utils.remover import remover
 
@@ -56,7 +57,6 @@ class FetchNode(BaseNode):
 
         # Interpret input keys based on the provided input expression
         input_keys = self.get_input_keys(state)
-
         # Fetching data from the state based on the input keys
         input_data = [state[key] for key in input_keys]
 
@@ -66,6 +66,15 @@ class FetchNode(BaseNode):
                 "source": "local_dir"
             })]
         # if it is a local directory
+
+        # handling for pdf
+        elif self.input == "pdf":
+            loader = PyPDFLoader(source)
+            compressed_document = loader.load()
+
+        elif self.input == "pdf_dir":
+            pass
+
         elif not source.startswith("http"):
             compressed_document = [Document(page_content=remover(source), metadata={
                 "source": "local_dir"