using IronPdf; // Disable local disk access or cross-origin requests Installation.EnableWebSecurity = true; // Instantiate Renderer var renderer = new ChromePdfRenderer(); // Create a PDF from a HTML string using C# var pdf = renderer.RenderHtmlAsPdf("<h1>Hello World</h1>"); // Export to a file or Stream pdf.SaveAs("output.pdf"); // Advanced Example with HTML Assets // Load external html assets: Images, CSS and JavaScript. // An optional BasePath 'C:\site\assets\' is set as the file location to load assets from var myAdvancedPdf = renderer.RenderHtmlAsPdf("<img src='icons/iron.png'>", @"C:\site\assets\"); myAdvancedPdf.SaveAs("html-with-assets.pdf");

using IronPdf; using System; // Step 1. Creating a PDF with editable forms from HTML using form and input tags // Radio Button and Checkbox can also be implemented with input type 'radio' and 'checkbox' const string formHtml = @" <html> <body> <h2>Editable PDF Form</h2> <form> First name: <br> <input type='text' name='firstname' value=''> <br> Last name: <br> <input type='text' name='lastname' value=''> <br> <br> <p>Please specify your gender:</p> <input type='radio' id='female' name='gender' value= 'Female'> <label for='female'>Female</label> <br> <br> <input type='radio' id='male' name='gender' value='Male'> <label for='male'>Male</label> <br> <br> <input type='radio' id='non-binary/other' name='gender' value='Non-Binary / Other'> <label for='non-binary/other'>Non-Binary / Other</label> <br> <p>Please select all medical conditions that apply:</p> <input type='checkbox' id='condition1' name='Hypertension' value='Hypertension'> <label for='condition1'> Hypertension</label><br> <input type='checkbox' id='condition2' name='Heart Disease' value='Heart Disease'> <label for='condition2'> Heart Disease</label><br> <input type='checkbox' id='condition3' name='Stoke' value='Stoke'> <label for='condition3'> Stoke</label><br> <input type='checkbox' id='condition4' name='Diabetes' value='Diabetes'> <label for='condition4'> Diabetes</label><br> <input type='checkbox' id='condition5' name='Kidney Disease' value='Kidney Disease'> <label for='condition5'> Kidney Disease</label><br> </form> </body> </html>"; // Instantiate Renderer var renderer = new ChromePdfRenderer(); renderer.RenderingOptions.CreatePdfFormsFromHtml = true; renderer.RenderHtmlAsPdf(formHtml).SaveAs("BasicForm.pdf"); // Step 2. Reading and Writing PDF form values. var FormDocument = PdfDocument.FromFile("BasicForm.pdf"); // Set and Read the value of the "firstname" field var FirstNameField = FormDocument.Form.FindFormField("firstname"); FirstNameField.Value = "Minnie"; Console.WriteLine("FirstNameField value: {0}", FirstNameField.Value); // Set and Read the value of the "lastname" field var LastNameField = FormDocument.Form.FindFormField("lastname"); LastNameField.Value = "Mouse"; Console.WriteLine("LastNameField value: {0}", LastNameField.Value); FormDocument.SaveAs("FilledForm.pdf");

Published March 17, 2023

How to Convert QR Code to PDF

In today's fast-paced digital world, QR codes have become an essential tool for businesses to promote their products or services.

PDF QR code generator allows you to store a wide range of information, such as website URL, product details, contact information, and more, which can be easily scanned by a smartphone camera or mobile devices. In this article, we will discuss how to create QR codes using various QR Code generator tools available online.

How to make QR Code for PDF

Install C# library to make QR Code for PDF
Generate and design QR code as required in image format
Converting the QR code to a PDF Document using Smallpdf website
Generate and design QR code with C# library
Utilize ImageToPdf method to convert the QR code to PDF

Why do we need to Convert the QR Code to PDF

Converting a QR code to PDF logo format may be useful in certain situations where it is necessary to preserve and share the code in a specific way. Here are some possible reasons why someone might need to create a PDF QR code:

Printing: If you need to print the one QR code, converting it to PDF format can ensure that the code is printed clearly and at the correct size in marketing materials.
Sharing: QR code for PDF can be easily used to share the code with others via email, user manuals, marketing campaign or other digital platforms. PDF files are commonly used for sharing documents as they preserve the formatting and appearance of the original file.
Archiving: If you need to save the QR code for future reference, converting it to PDF can ensure that the code is stored in a universal format that can be accessed on any device.
Security: Converting a QR code to PDF can provide an additional layer of security as PDF files can be password-protected or encrypted to prevent unauthorized access.

Creating a QR code

To generate QR code, you will need to use an online QR Code Generator. An online QR code generator allows you to generate a QR code quickly and easily by simply entering the information you want to encode and selecting the type of QR code you want to create.

One of the most popular online QR code generators is QR Code Monkey. QR Code Monkey allows you to create static QR codes for free, and you can customize the design of your dynamic QR code using the various options available.

Steps to Create QR Code

To create a QR code solution using QR Code Monkey, follow these steps:

Step 1: Open the QR Code Monkey website and select the type of QR code you want to create.

Step 2: Enter the information you want to encode in the dynamic QR codes.

Entering the information to encode in the QR Code

Step 3: Customize the design of your QR code by selecting the shape, and color, and adding a logo or image.

Add a logo or image to your QR Code

Step 4: Once you are satisfied with your QR code, click on the "Create QR Code" button to generate the QR code.

Once you are satisfied with your QR Code, click on the Create QR Code button to generate it

Step 5: Download the QR code as a PNG file. Select the location where you want to save the file.

Converting the QR code to a PDF Document

Now that you have created a QR code, you may want to convert it into a PDF file, which can be easily shared with others. To create PDF QR codes, you will need to use an image to PDF web tool.

One of the most popular images for PDF web tools is Smallpdf. Smallpdf is a free web-based tool that allows you to convert various image formats, including PNG, to PDF files quickly and easily without any printing costs.

Steps to convert QR Code to PDF

To convert the QR code PNG file to a PDF file using Smallpdf, follow these steps:

Step 1: Open the Smallpdf website and click on the "JPG to PDF" url tool.

Smallpdf Website

Step 2: Drag and drop the QR code PNG file into the conversion box or click on the "Choose Files" button to select the file from your computer.

Upload the QR Code that you wish to convert into a PDF

Step 3: Once the file is uploaded, click on the Convert button to convert the QR code to the PDF file.

Converting the QR Image into a PDF File

Step 4: Click on the "Download" button to download the PDF file to your computer.

Download the converted QR Code PDF File

Whether you are a small business owner looking to promote your products or services, or a marketer looking to enhance your marketing campaigns, QR codes are an excellent tool for reaching your target audience quickly and easily. By converting your QR codes to PDF files, you can easily share them with others, making it an ideal way to distribute information and promote your business.

IronBarcode

IronBarcode is a barcode library for .NET that enables developers to easily add barcode reading and writing capabilities to their applications. It supports a wide range of barcode types, including Code 128, Code 39, UPC, EAN, QR code, and more.

IronBarcode provides a simple and intuitive API that allows developers to generate barcodes as images or strings in the uploaded PDF file, read barcodes from images, and perform advanced barcode processing tasks such as detecting and decoding multiple barcodes in a single image. It also includes support for advanced barcode features including checksum validation, encoding options, and error correction.

IronBarcode Code Example

using System.Drawing;
using IronBarCode;

// Creating a barcode is as simple as:
var myBarcode = BarcodeWriter.CreateBarcode("12345", BarcodeWriterEncoding.EAN8);

// And save our barcode as in image:
myBarcode.SaveAsImage("EAN8.jpeg");

using System.Drawing;
using IronBarCode;

// Creating a barcode is as simple as:
var myBarcode = BarcodeWriter.CreateBarcode("12345", BarcodeWriterEncoding.EAN8);

// And save our barcode as in image:
myBarcode.SaveAsImage("EAN8.jpeg");

Imports System.Drawing
Imports IronBarCode

' Creating a barcode is as simple as:
Private myBarcode = BarcodeWriter.CreateBarcode("12345", BarcodeWriterEncoding.EAN8)

' And save our barcode as in image:
myBarcode.SaveAsImage("EAN8.jpeg")

VB C#

IronPDF: C# PDF Library

IronPDF is a C# PDF library that enables developers to easily create, edit, and manipulate PDF QR documents in their .NET applications. It provides a simple and intuitive API that allows developers to generate PDF documents from HTML content, merge PDF files, extract text and images from PDF files, add annotations and watermarks, and more.

IronPDF supports a wide range of PDF features, including password protection, digital signatures, form filling, and page manipulation.

Code Example of IronPDF

Here is the code which we can use to convert a QR code design image to PDF.

using IronPdf;
using System.IO;
using System.Linq;

// Converts an image to a PDF File and Save it.
ImageToPdfConverter.ImageToPdf("qrCode.png").SaveAs("composite.pdf");

using IronPdf;
using System.IO;
using System.Linq;

// Converts an image to a PDF File and Save it.
ImageToPdfConverter.ImageToPdf("qrCode.png").SaveAs("composite.pdf");

Imports IronPdf
Imports System.IO
Imports System.Linq

' Converts an image to a PDF File and Save it.
ImageToPdfConverter.ImageToPdf("qrCode.png").SaveAs("composite.pdf")

VB C#

Conclusion

In conclusion, creating a QR code is an effective way of promoting your business, sharing information, and saving data for future reference. Converting a QR code to a PDF can be helpful in printing, sharing, archiving, or adding an extra layer of security to the code. Online QR code generators like QR Code Monkey and image-to-PDF conversion tools like Smallpdf make it easy to create and convert QR codes to PDF files.

Libraries like IronBarcode and IronPDF provide more advanced features. Licenses for IronPDF and IronBarcode start from $749, and both offer a free trial, allowing developers to test and evaluate the software before purchasing it.