Python에서 PDF에서 데이터를 추출하는 방법

2.1 IronPDF Features

HTML, HTML5, ASPX, and Razor/MVC View are some of the handful of formats that can be converted into PDF format by using IronPDF. Furthermore, IronPDF offers the convenient capability to generate PDF files from both images and HTML pages.

The IronPDF toolkit can assist with various tasks, including the creation of interactive PDFs, the facilitation of interactive form completion and submission, the efficient merging and dividing of PDF files, accurate text and image extraction, comprehensive text searching within PDF files, the transformation of PDFs into images, and the flexibility to customize font sizes, borders, and background colors. IronPDF can also achieve effortless PDF file conversions.

IronPDF goes a step further by extending its support for user agents, proxies, cookies, HTTP headers, and form variables, thereby enhancing HTML login form validation. It uses usernames and passwords to safeguard user access to secure text contained within PDFs.

A PDF file print can be produced from many sources, such as a string, stream, or URL, and is achievable with just a few lines of code.

IronPDF can produce flattened PDF documents by converting interactive elements and ensuring that the document's content remains unchangeable and viewable but not editable.

3.1 Installing Python and Creating a Virtual Environment

Make certain that you have the Python programming language installed on your personal computer. This is important because Python libraries are frequently required for various tasks. To achieve this, visit the official Python website and download the latest version compatible with your operating system. This ensures you have the right tools to work effectively with Python libraries.

After installing Python, establish a virtual environment to isolate the required libraries for your project, as some projects may need some necessary libraries from Python. The venv module, which enables you to construct and maintain virtual environments, might help your conversion project have a neat, autonomous workplace, especially when dealing with multiple Python libraries.

3.2 Setting Up a New Project in PyCharm

You have the flexibility to write Python code using any text editor or coding environment, such as Visual Studio Code, PyCharm, or Sublime Text. However, this article uses PyCharm, an IDE for writing Python code, to create a Python project.

Once PyCharm IDE is launched, select New Project.

PyCharm IDE to create New Python Project

After selecting New Project, you will see a new window that allows you to specify the project's environment and location. The picture below might provide more clarity.

After setting up project location and environment details and clicking Create you'll enter PyCharm's interface. Here, you'll find your project's structure and code files. This is your workspace for managing and developing your project. Python 3.9 is the version used in this guide.

The main Python file

3.3 Library Requirements for IronPDF

The Python library IronPDF commonly interfaces with .NET 6.0. Therefore, to effectively utilize IronPDF for Python, your computer must be equipped with the .NET 6.0 runtime.

For Linux and Mac users, it may be necessary to install .NET before utilizing this Python module. For guidance on obtaining the required runtime environment, please visit this Microsoft download page.

3.4 Installing the IronPDF Library

You have to install the "ironpdf" package to work with PDF files, including creating, editing, and opening them. To do this in PyCharm, open the terminal window and enter this command:

 pip install ironpdf

Refer to the screenshot below for the ironpdf package installation.

IronPDF Installation

4.1 Extracting All Text Data from PDF file

In this example, the process of extracting text from an existing PDF using IronPDF is demonstrated. In this case, the below PDF document is utilized for this demonstration.

The first method focuses on extracting all the text from the PDF file. Write the following code to easily perform complete data extraction on input PDF:

from ironpdf import *

# Load a PDF document from a file
pdf = PdfDocument.FromFile("sampleData.pdf")

# Extract all text from the PDF document
all_text = pdf.ExtractAllText()

from ironpdf import *

# Load a PDF document from a file
pdf = PdfDocument.FromFile("sampleData.pdf")

# Extract all text from the PDF document
all_text = pdf.ExtractAllText()

As illustrated in the code above, the FromFile method plays a key role. It loads the PDF file from an existing location, to convert it into PdfDocument objects. With this object, both textual content and images present within the PDF pages can be accessed. To extract all the text from the given PDF file, a method called ExtractAllText is used. The extracted text is then stored in a string, ready for further processing.

4.2 Page-by-Page Text Extraction

Below is the code for the second approach, which explicitly extracts text from each page of the PDF file.

from ironpdf import *

# Load a PDF document from a file
pdf = PdfDocument.FromFile("sampleData.pdf")

# Iterate over each page and extract text
for xpage in range(pdf.PageCount):
    # Extract text from the current page
    print(pdf.ExtractTextFromPage(xpage))

from ironpdf import *

# Load a PDF document from a file
pdf = PdfDocument.FromFile("sampleData.pdf")

# Iterate over each page and extract text
for xpage in range(pdf.PageCount):
    # Extract text from the current page
    print(pdf.ExtractTextFromPage(xpage))

This sample code initially loads the entire PDF file and transforms it into a PdfDocument object called pdf. To ensure that each specific page from the PDF file is processed sequentially, each page is accessed using its page number or page index in the pdf object. To do this first, the total number of pages present in the input PDF is determined using the PageCount method of its pdf object.

With this page count, a for loop iterates through each page, calling the ExtractTextFromPage function to extract text from each page of the PDF document. The extracted text can be stored in a string variable or displayed on the user screen. Thus, this method enables the organized extraction of text from each separate PDF page. These methods, from IronPDF, a Python library designed for PDF tasks, highlight its ability to make text extraction from PDF files easy and thorough. This accessibility has many practical applications and improves the usefulness of PDFs in different areas.