extracting text from a PDF file

 

To extract text from a PDF file, you can use a command-line tool called pdftotext. pdftotext is a tool that is included in the poppler-utils package, which is a collection of utilities for working with PDF files.

To use pdftotext, you will need to install the poppler-utils package on your system. On a Linux system, you can typically install this package using your package manager. For example, on a Debian or Ubuntu system, you can use the following command to install poppler-utils:

sudo apt-get install poppler-utils

Once the poppler-utils package is installed, you can use the pdftotext command to extract the text from a PDF file. For example, if you have a PDF file named my-file.pdf in your current directory, you can extract the text from this file using the following command:

pdftotext my-file.pdf

This will create a new text file in the same directory as the PDF file, with the same name but with a .txt extension. For example, if the original PDF file was named my-file.pdf, the extracted text file will be named my-file.txt.

You can also use the -layout option to preserve the original layout of the text in the PDF file. This can be useful if the PDF file contains tables or other complex formatting that you want to preserve in the extracted text. For example:

pdftotext -layout my-file.pdf

on centos example : 

To install the poppler-utils package on CentOS, you will need to use the yum command. yum is the package manager for CentOS, and it allows you to install, update, and manage software packages on your system.

To install the poppler-utils package on CentOS, open a terminal window and run the following command:

sudo yum install poppler-utils

This will install the poppler-utils package and all of its dependencies. Once the installation is complete, you will be able to use the pdftotext command to extract text from PDF files.

If you encounter any errors or issues during the installation process, you can use the yum command with the -y option to force the installation to continue without prompting for confirmation. For example:

sudo yum -y install poppler-utils