How do I read a barcode from a PDF?

Posted on by Muna Meyer

How do I read a barcode from a PDF?

We will follow the below steps for reading the barcode from the PDF document:

  1. Extract image from a pdf document using Aspose. PDF for . NET using PdfExtractor or PdfConverter.
  2. Save the extracted image as a stream.
  3. Pass the image in the form of the stream to Aspose. BarCode for . NET.
  4. Read the barcode from the image.

How does iText work?

How it works. Simply pass to iText pdfOCR an image, or list of images containing text to be recognized. iText pdfOCR accepts input from any image format supported by iText, though if your document is a PDF you can simply use iText 7 Core to extract the images containing the text you need to access.

What is iTextSharp used for?

Itextsharp is an advanced tool library which is used for creating complex pdf repors. itext is used by different techonologies — Android , . NET, Java and GAE developer use it to enhance their applications with PDF functionality.

How do I copy a barcode from a PDF?

Open up both of your documents, and enable form editing for both documents (Forms>Add or Edit Fields). When you see the outline of the fields, select the barcode field and press Ctrl-C (or Cmd-C on a Mac). Then go to the target document and press Ctrl-V (or Cmd-V on a Mac).

What is iText in PDF?

Apache iText is an open-source Java library that supports the development and conversion of PDF documents. In this tutorial, we will learn how to use iText to develop Java programs that can create, convert, and manipulate PDF documents.

How do I use Spire PDF?

In this step, we are going to set a password for our pdf document. To work with security, you need to add a new reference as in the following: using Spire. Pdf….Convert PDF Page to Image

  1. using Spire. Pdf;
  2. using Spire. Pdf. Graphics;
  3. using System;
  4. using System. Drawing;

How do I add Spire PDF to Visual Studio?

How to Mannually Add Spire. PDF as Dependency in a . NET Standard Library Project

  1. Step 1: Download the latest version of Spire.
  2. Step 2: Create a .
  3. Step 3: Add all DLL files under the “netstandard2.
  4. Step 4: Install the other five packages in your project via the NuGet Package Manager.

How to display text below barcode image in iTextSharp?

There is no direct way to display text below the barcode image using iTextSharp dll. I tried the same and had a workaround to display the text. This is not a direct solution, but will provide output similar to what is expected out of a barcode image.

How to extract images from a PDF document using iTextSharp?

The method GetImages uses iTextSharp to extract images from a PDF document. The following shows how to use the barcode library to scan the extracted image: Console.WriteLine (“Done!”); You are welcome to test the code to scan barcodes from a PDF document.

Are there any real world examples of iTextSharp?

These are the top rated real world C# (CSharp) examples of iTextSharp.text.pdf.Barcode128 extracted from open source projects. You can rate examples to help us improve the quality of examples.