Python에서 PDF 파일을 파싱하는 방법

With the assistance of the IronPDF libraries, it is possible to extract text from PDF files. IronPDF provides various techniques for text extraction. The first approach involves retrieving all the content on the page as a single string. The second approach involves reading the content page by page, starting from the first page. The following code snippet demonstrates a pattern for inspecting current PDF files using IronPDF.

There are two methods available to extract data from a PDF:

1. Extracting from the PDF by page.
2. Extracting the whole PDF as text.

Below is the PDF file which we're going to use for this article. It has two pages.

A PDF with the page number at the top of each page

4.0.1 TEXT EXTRACTION BY PAGES

The sample code provided below demonstrates how to use the page number to retrieve data from a PDF file.

from ironpdf import PdfDocument

# Open a PDF file and create a PDF document object
pdfDocument = PdfDocument.FromFile("F:\\PDF\\1.pdf")

# Extract text from the first page (index 0)
AllText = pdfDocument.ExtractTextFromPage(0)

# Print the extracted text from the first page
print(AllText)

from ironpdf import PdfDocument

# Open a PDF file and create a PDF document object
pdfDocument = PdfDocument.FromFile("F:\\PDF\\1.pdf")

# Extract text from the first page (index 0)
AllText = pdfDocument.ExtractTextFromPage(0)

# Print the extracted text from the first page
print(AllText)

The code snippet demonstrates the usage of the FromFile function to read a PDF file and create a PDF document object. This object allows access to texts and images within the PDF. To extract the text from a particular page, the ExtractTextFromPage method can be used by providing the page number as a parameter. This method will return a string containing all the words on the specified page. The output will be displayed as below.

A screenshot of the terminal with text output "Page 1"

The rectangle box which highlighted in the result is the data extracted text from the PDF file on the page number 1, which has the index as 0.

4.0.2 EXTRACT FROM ALL PAGE

The first approach to quickly and easily obtain all the PDF content as a string is shown in the code example that follows.

from ironpdf import PdfDocument

# Create a PDF file object from the file path
pdf = PdfDocument.FromFile('F:\\PDF\\1.pdf')

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

# Print the extracted text from the entire PDF
print(all_text)

from ironpdf import PdfDocument

# Create a PDF file object from the file path
pdf = PdfDocument.FromFile('F:\\PDF\\1.pdf')

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

# Print the extracted text from the entire PDF
print(all_text)

The example code shown above explains how to read a PDF from an existing file path and turn it into a PDF file object using the FromFile function. The PDF's plain text will be extracted and converted into a string using the object's ExtractAllText function and it will print the extracted text on the terminal. The result will be shown like below.

A screenshot of the terminal with text output "Page 1", and "Page 2"

The rectangle boxes which are highlighted in the result contain the data extracted text from all the pages of the PDF file.

We are able to create PDFs using C# with the help of IronPDF. To learn more about IronPDF, visit the IronPDF website.