//Rendering PDF documents to Images or Thumbnails using IronPdf; using System.Drawing; // Extracting Image and Text content from Pdf Documents // open a 128 bit encrypted PDF PdfDocument PDF = PdfDocument.FromFile("encrypted.pdf", "password"); //Get all text to put in a search index string AllText = PDF.ExtractAllText(); //Get all Images IEnumerable<System.Drawing.Image> AllImages = PDF.ExtractAllImages(); //Or even find the precise text and images for each page in the document for (var index = 0; index < PDF.PageCount; index++) { int PageNumber = index + 1; string Text = PDF.ExtractTextFromPage(index); IEnumerable<System.Drawing.Image> Images = PDF.ExtractImagesFromPage(index); ///... }

'Rendering PDF documents to Images or Thumbnails Imports IronPdf Imports System.Drawing ' Extracting Image and Text content from Pdf Documents ' open a 128 bit encrypted PDF Private PDF As PdfDocument = PdfDocument.FromFile("encrypted.pdf", "password") 'Get all text to put in a search index Private AllText As String = PDF.ExtractAllText() 'Get all Images Private AllImages As IEnumerable(Of System.Drawing.Image) = PDF.ExtractAllImages() 'Or even find the precise text and images for each page in the document For index = 0 To PDF.PageCount - 1 Dim PageNumber As Integer = index + 1 Dim Text As String = PDF.ExtractTextFromPage(index) Dim Images As IEnumerable(Of System.Drawing.Image) = PDF.ExtractImagesFromPage(index) '''... Next index

Read PDF Files

Read PDF documents in C# .NET Applications using the PdfDocument.ExtractAllText method in the IronPDF library.

This PDF reader & parser library is particularly good at accurately extracting text with support for whitespace, formatting and Unicode and UTF-8 character reading. It also supports opening and reading the contents of password protected PDF documents in all .NET programming languages such as VB.NET and C#. We can also use .NET to read the text content from Specific pages and also read all embedded image files as well.

IronPDF allows developers to easily extract the full text and images from almost any PDF file. This PDF OCR behavior is particularly useful when building search indexes.

Reading a PDF can be a challenging task in C#. IronPDF allows developers to easily extract the full text and images from almost any PDF file.

This PDF OCR behaviour is particularly useful when building search indexes. Download the IronPDF library, a complete solution to all your problems related to PDF files.

How to Read PDF file in C#

Download Read and Write PDF C# Library
Install with Nuget to Test the Library
Extract Images or Text from PDF
Find Words in Specific Documents
View PDF Output

What features does IronPDF provide?

This PDF reader & parser library is particularly good at accurately extracting text with support for whitespace, formatting and Unicode and UTF-8-character reading.

Its features include:

Extract plain text from pdf file
Extract images from existing pdf file
Find precise text and images for each page in the document

One of the most helpful features the IronPDF library provides are:

PDF signatures - this helps you digitally sign a pdf or even add additional signatures after editing
Form filling – this helps you fill the specific fields of a pdf form
User permissions and passwords – this helps opening and reading the contents of password protected PDF documents and restricting unauthorized use

Manipulating PDF Documents

With all the exciting features mentioned above, it still has more features to manipulate the PDF documents in the easiest way. It helps to:

Merge and Join PDF pages
Copy, Add, and Remove pages
Rotate pages
Add, edit and remove PDF outlines

Additional Features

Besides all this, PDF imaging, PDF file IO are also important features available in IronPDF library. These features include:

Convert any number of images to PDF file in one line of code
Convert PDF pages to images
Extract embedded images to an existing PDF file
Image supported formats (BMP, JPEG, GIF, PNG and TIFF)
Convert any PDF document into a PrintDocument object
Programmatically send PDF files to a printer without Adobe reader
PDF files can be loaded or saved from files, Binary data or MemoryStreams

Try IronPDF for Free

With all these easy and simple to use features for reading, writing and converting a PDF document, give a try to our user-friendly library by downloading this file and install the DLL package for IronPDF. We offer professional customer support by senior software engineers in 4 timezones, and are always here to help you troubleshoot any issues.

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