Loading PDFs with PyPDFLoader in LangChain - Mini Project: Build & Apply

Loading PDFs with PyPDFLoader

📖 Scenario: You want to read the text content from a PDF file to use it in a chatbot or search tool. The PyPDFLoader from the langchain library helps you load PDF files easily.

🎯 Goal: Build a simple Python script that loads a PDF file using PyPDFLoader and extracts its pages as text.

📋 What You'll Learn

Create a variable with the PDF file path

Import PyPDFLoader from langchain.document_loaders

Use PyPDFLoader to load the PDF file

Extract the pages from the loaded PDF

💡 Why This Matters

🌍 Real World

Loading PDFs is common when you want to extract text from reports, manuals, or books to build search tools or chatbots.

💼 Career

Many jobs in data science, AI, and software development require working with documents. Knowing how to load PDFs programmatically is a useful skill.

1

Set the PDF file path

Create a variable called pdf_path and set it to the string 'example.pdf'.

LangChain

# Create a variable called pdf_path and set it to 'example.pdf'
pdf_path = ''  # Your code here

Need a hint?

Use a string to store the file name exactly as 'example.pdf'.

2

Import PyPDFLoader

Import PyPDFLoader from langchain.document_loaders.

LangChain

pdf_path = 'example.pdf'
# Import PyPDFLoader from langchain.document_loaders
from langchain.document_loaders import PyPDFLoader  # Your code here

Need a hint?

Use the exact import statement: from langchain.document_loaders import PyPDFLoader.

3

Load the PDF file

Create a variable called loader and set it to PyPDFLoader(pdf_path) to load the PDF file.

LangChain

pdf_path = 'example.pdf'
from langchain.document_loaders import PyPDFLoader
# Create loader variable to load the PDF file
loader = None  # Your code here

Need a hint?

Use PyPDFLoader with the pdf_path variable as argument.

4

Extract pages from the PDF

Create a variable called pages and set it to the result of calling loader.load() to extract the pages from the PDF.

LangChain

pdf_path = 'example.pdf'
from langchain.document_loaders import PyPDFLoader
loader = PyPDFLoader(pdf_path)
# Extract pages from the PDF
pages = None  # Your code here

Need a hint?

Call the load() method on loader and assign it to pages.