QuestPDF: An Open-source .NET Library for PDF Documents Generation

QuestPDF is an open-source .NET library for PDF documents generation.

It offers a layouting engine designed with a full paging support in mind. The document consists of many simple elements (e.g. border, background, image, text, padding, table, grid etc.) that are composed together to create more complex structures. This way, as a developer, you can understand the behavior of every element and use them with full confidence. Additionally, the document and all its elements support paging functionality. For example, an element can be moved to the next page (if there is not enough space) or even be split between pages like table's rows.

Unlike other libraries, it does not rely on the HTML-to-PDF conversion which in many cases is not reliable. Instead, it implements its own layouting engine that is optimized to cover all paging-related requirements.

Please show the value

Choosing a project dependency could be difficult. We need to ensure stability and maintainability of our projects. Surveys show that GitHub stars count play an important factor when assessing library quality.

⭐ Please give this repository a star. It takes seconds and help thousands of developers! ⭐

Please share with the community

As an open-source project without funding, I cannot afford advertising QuestPDF in a typical way. Instead, the library relies on community interactions. Please consider sharing a post about QuestPDF and the value it provides. It really does help!

Support development

It doesn't matter if you are a professional developer, creating a startup or work for an established company. All of us care about our tools and dependencies, about stability and security, about time and money we can safe, about quality we can offer. Please consider sponsoring QuestPDF to give me an extra motivational push to develop the next great feature.

If you represent a company, want to help the entire community and show that you care, please consider sponsoring QuestPDF using one of the higher tiers. Your company logo will be shown here for all developers, building a strong positive relation.


The library is available as a nuget package. You can install it as any other nuget package from your IDE, try to search by QuestPDF. You can find package details on this webpage.

// Package Manager
Install-Package QuestPDF

dotnet add package QuestPDF

// Package reference in .csproj file
<PackageReference Include="QuestPDF" Version="2022.3.1" />


 A short and easy to follow tutorial showing how to design an invoice document under 200 lines of code.

 A detailed description of behavior of all available components and how to use them with C# Fluent API.

 Everything that may help you designing great reports and create reusable code that is easy to maintain.

Simplicity is the key

How easy it is to start and prototype with QuestPDF? Really easy thanks to its minimal API! Please analyse the code below:

using QuestPDF.Fluent;
using QuestPDF.Helpers;
using QuestPDF.Infrastructure;

// code in your main method
Document.Create(container =>
    container.Page(page =>
        page.Margin(2, Unit.Centimetre);
        page.DefaultTextStyle(x => x.FontSize(20));
            .Text("Hello PDF!")
            .PaddingVertical(1, Unit.Centimetre)
            .Column(x =>
                x.Item().Image(Placeholders.Image(200, 100));
            .Text(x =>
                x.Span("Page ");

And compare it to the produced PDF file:

Are you ready for more?

The Fluent API of QuestPDF scales really well. It is easy to create and maintain even most complex documents. Read the Getting started tutorial to learn QuestPDF basics and implement an invoice under 200 lines of code. You can also investigate and play with the code from the example repository.

Download Details:
Author: QuestPDF
Source Code:
License: MIT License

#dotnet  #aspdotnet  #csharp 

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QuestPDF: An Open-source .NET Library for PDF Documents Generation
Einar  Hintz

Einar Hintz


jQuery Ajax CRUD in ASP.NET Core MVC with Modal Popup

In this article, we’ll discuss how to use jQuery Ajax for ASP.NET Core MVC CRUD Operations using Bootstrap Modal. With jQuery Ajax, we can make HTTP request to controller action methods without reloading the entire page, like a single page application.

To demonstrate CRUD operations – insert, update, delete and retrieve, the project will be dealing with details of a normal bank transaction. GitHub repository for this demo project :

Sub-topics discussed :

  • Form design for insert and update operation.
  • Display forms in modal popup dialog.
  • Form post using jQuery Ajax.
  • Implement MVC CRUD operations with jQuery Ajax.
  • Loading spinner in .NET Core MVC.
  • Prevent direct access to MVC action method.

Create ASP.NET Core MVC Project

In Visual Studio 2019, Go to File > New > Project (Ctrl + Shift + N).

From new project window, Select Asp.Net Core Web Application_._

Image showing how to create ASP.NET Core Web API project in Visual Studio.

Once you provide the project name and location. Select Web Application(Model-View-Controller) and uncheck HTTPS Configuration. Above steps will create a brand new ASP.NET Core MVC project.

Showing project template selection for .NET Core MVC.

Setup a Database

Let’s create a database for this application using Entity Framework Core. For that we’ve to install corresponding NuGet Packages. Right click on project from solution explorer, select Manage NuGet Packages_,_ From browse tab, install following 3 packages.

Showing list of NuGet Packages for Entity Framework Core

Now let’s define DB model class file – /Models/TransactionModel.cs.

public class TransactionModel
    public int TransactionId { get; set; }

    [Column(TypeName ="nvarchar(12)")]
    [DisplayName("Account Number")]
    [Required(ErrorMessage ="This Field is required.")]
    [MaxLength(12,ErrorMessage ="Maximum 12 characters only")]
    public string AccountNumber { get; set; }

    [Column(TypeName ="nvarchar(100)")]
    [DisplayName("Beneficiary Name")]
    [Required(ErrorMessage = "This Field is required.")]
    public string BeneficiaryName { get; set; }

    [Column(TypeName ="nvarchar(100)")]
    [DisplayName("Bank Name")]
    [Required(ErrorMessage = "This Field is required.")]
    public string BankName { get; set; }

    [Column(TypeName ="nvarchar(11)")]
    [DisplayName("SWIFT Code")]
    [Required(ErrorMessage = "This Field is required.")]
    public string SWIFTCode { get; set; }

    [Required(ErrorMessage = "This Field is required.")]
    public int Amount { get; set; }

    [DisplayFormat(DataFormatString = "{0:MM/dd/yyyy}")]
    public DateTime Date { get; set; }


Here we’ve defined model properties for the transaction with proper validation. Now let’s define  DbContextclass for EF Core. core article core #add loading spinner in core core crud without reloading core jquery ajax form core modal dialog core mvc crud using jquery ajax core mvc with jquery and ajax core popup window #bootstrap modal popup in core mvc. bootstrap modal popup in core #delete and viewall in core #jquery ajax - insert #jquery ajax form post #modal popup dialog in core #no direct access action method #update #validation in modal popup

Laravel 8 PDF Generate Example

Today, we will see Laravel 8 PDF Generate Example.

For generating PDF file we will use Laravel-dompdf package, it is create pdf file and also provide to download file functionalities it is very easy to generate pdf in laravel 8, i will give you example in very simple way to generate pdf file and download in your system.

So, Let’s start and see how to generate pdf in laravel 8.

Laravel 8 PDF Generate Example

Read Also : Send Mail Example In Laravel 8

Read Also : How To Generate QRcode In Laravel

Read Also : How To Generate Barcode In Laravel

#laravel 8 pdf generate example #laravel 8 #pdf generate #generate pdf in laravel 8 #laravel-dompdf package #how to generate pdf in laravel 8

Tyrique  Littel

Tyrique Littel


An Open-Source Book About the Open Source World

Open source today is a word that often include a lot of things, such as open knowledge (Wikimedia projects), open hardware (Arduino, Raspberry Pi), open formats (ODT/ODS/ODP) and so on.

It is a world of opportunities that can be difficult for newcomers but also for intermediates. This article will help you discover how to approach specific roles, activities or projects/communities in the best way.

Everything Started with “Coaching for OpenSource Communities 2.0”

I decided to write a book in my personal style about my experience in the last 7 to 8 years in open source. I was surprised when I reached 100 pages about various different topics.

My idea was to write something that I would like to read, so nothing that is boring or complicated, but full of real facts.

The second goal was to include my experience but also my philosophy on contributing and how I contribute daily.

Thirdly, I wanted to give a lot of hints and resources and an overall view of this open source world.

Basically, I wanted to write something different from self-help or coaching books that includes just a list of suggestions and best practices. Instead, I take real examples from real life about the OSS world.

As a contributor and developer, I prefer to have real cases to study, because best practices are useful, but we need to learn from others and this world is full of good and bad cases to discover.

In 2019, I started writing a book after Fosdem 2019 and after 2 years inside the Mozilla Reps Council. In that Fosdem edition, I had a talk “Coaching for Open Source Communities 2.0” and after the feedback at the conference and my thoughts in various roles, activities, and projects, it was time to write something.

At the end it wasn’t a manual but a book that included my experience, learnings, best practices and so on in Localization, Development, Project Maintainer, Sysadmin, Community Management, Mentor, Speaker and so on. It contains the following sections:

  • Biography - This choice isn’t for self promotion but just to understand my point of view and my story that can be inspiring for others
  • Philosophy - Not the usual description of Open Source or the 4 freedoms, but just what Open Source means and how you can help
  • How to live inside the Open Source - A discovery about communications and tools, understanding the various kind of people and the best way to talk with your community
  • How to choose a project - Starting with some questions to yourself and how to involve more people in your project
  • The activity - Open Source is based on tasks that can be divided in 2 levels: Support, Testing, Marketing, Development etc
  • How to use your time - We are busy, we have a life, a job and a family but Open Source can be time-consuming
  • Why document is important - How writing documentation can be healthy for your community and the project’s future and brand

There are also three appendices that are manuals which I wrote throughout the years and gathered and improved for this book. They are about: community management, public speaking, and mentoring.

The book ends with my point of view about the future and what we have to do to change opinions about those topics.

I wrote this book and published in October 2019, but it was only possible with the help of reviews and localizers that improved and contributed. Yes, because this book is open source and free for everyone.

I picked the GPL license because this license changed the world and my life in the best way. Using this license is just a tribute. This decision usually is not clear because after all this is a book and there are better licenses like Creative Commons.

#open-source #contributing-to-open-source #programming #software-development #development #coding #books #open-source-software

Ray  Patel

Ray Patel


Top 8 Java Open Source Projects You Should Get Your Hands-on [2021]

Learning about Java is no easy feat. It’s a prevalent and in-demand programming language with applications in numerous sectors. We all know that if you want to learn a new skill, the best way to do so is through using it. That’s why we recommend working on projects.

So if you’re a Java student, then you’ve come to the right place as this article will help you learn about the most popular Java open source projects. This way, you’d have a firm grasp of industry trends and the programming language’s applications.

However, before we discuss its various projects, it’s crucial to examine the place where you can get those projects – GitHub. Let’s begin.

#full stack development #java open source projects #java projects #open source projects #top 8 java open source projects #java open source projects

Cayla  Erdman

Cayla Erdman


Introduction to Structured Query Language SQL pdf

SQL stands for Structured Query Language. SQL is a scripting language expected to store, control, and inquiry information put away in social databases. The main manifestation of SQL showed up in 1974, when a gathering in IBM built up the principal model of a social database. The primary business social database was discharged by Relational Software later turning out to be Oracle.

Models for SQL exist. In any case, the SQL that can be utilized on every last one of the major RDBMS today is in various flavors. This is because of two reasons:

1. The SQL order standard is genuinely intricate, and it isn’t handy to actualize the whole standard.

2. Every database seller needs an approach to separate its item from others.

Right now, contrasts are noted where fitting.

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