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How to add watermark to PDF file in C# , VB.NET | WinForms - PDF
3 Aug 2018 ... C# example to add watermark to PDF file using Syncfusion .NET PDF library. Text and image watermark also supported.

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How To Add Watermark On PDF Files - C# Corner
23 Sep 2015 ... Step 2: Get the first page of the PDF . Step 3: Load the image from file and set it as the PDF background. Step 4: Save the document to file. Figure 1: Watermark . Part 2: Add Text Watermark . Step 1: Create a new instance of PDF document and load the document from file. Step 2: Get the first page of the PDF .

A class diagram can show different kinds of relationships, like association, aggregation , composition, and generalization. Association is a basic relationship without any rules. A class can be associated to anotherone like a User class is associated to a Group class. Aggregation is a stronger version of the Associantion relationships, and indicates that a class owns another class. For example a class User owns his bank account. The composition relationship is even stronger than the aggregation one; they behave in the same way but the difference is that an the object that composes another object is part of the object composed, and if it is delete will be delete also the object related. Finally the relationship generalization indicates generalization throught interfaces or inheritance extending other classes. When you are going to implement generalization and inheritance try to see if the class is a type or has a type og the other class. A class Admin is a type of User, so we can or implement the interface User to the class Admin, or extend the class User with the class Admin. I prefer to use interfaces. Each relationship can have a multiplicity, which means the number of the possible classes associated to another. For example a group may have many users, and translated into UML, this means that the class user has a relationship with multiplicity 1..*. Multiplicity can be a single number or a range of numbers. Figure 1-8 shows three classes, Administrator, Author, and ContentEditor, implementing the interface User that composes the class group. Translated into simple English, this means that a user can be Administrator, Author or ContentEditor type.

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Add Water mark image to PDF using iTextsharp , C# and VB.Net in ASP ...
Create)); var image = iTextSharp . text .Image.GetInstance(watermarkImagePath); image.SetAbsolutePosition(200, 400); for (var i = 0; ...

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How To Add Watermark On PDF Files - C# Corner
23 Sep 2015 ... Image watermark is a good choice to beautify PDF files since it fills the background with colorful and distinctive pictures, then how to add a ...

Before we examine generic interfaces, it is worth pointing out that generic classes can be the base class to other classes, and can therefore define any number of virtual or abstract methods. However, the derived types must abide by a few rules to ensure that the nature of the generic abstraction flows through. First of all, if a nongeneric class extends a generic class, the derived class must specify a type parameter: // Assume you have created a custom // generic list class. public class MyList<T> { private List<T> listOfData = new List<T>(); } // Concrete types must specify the type // parameter when deriving from a // generic base class. public class MyStringList : MyList<string> {} Furthermore, if the generic base class defines generic virtual or abstract methods, the derived type must override the generic methods using the specified type parameter: // A generic class with a virtual method. public class MyList<T> { private List<T> listOfData = new List<T>(); public virtual void PrintList(T data) { } } public class MyStringList : MyList<string> { // Must substitute the type parameter used in the // parent class in derived methods. public override void PrintList(string data) { } } If the derived type is generic as well, the child class can (optionally) reuse the type placeholder in its definition. Be aware, however, that any constraints placed on the base class must be honored by the derived type, for example: // Note that we now have a default constructor constraint. public class MyList<T> where T : new() { private List<T> listOfData = new List<T>();

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add watermark image to pdf using itextsharp c#

iText 7 : How to add an image watermark to a PDF file?
8 Jul 2013 ... I'm using C# and iTextSharp to add a watermark to my PDF files: ... Image img = iTextSharp .text. Image .GetInstance( WatermarkLocation ); img.

add watermark to pdf using itextsharp c#

How to add watermark to PDF file in C# , VB.NET | WinForms - PDF
3 Aug 2018 ... For example, you can apply a “Confidential” text to the pages with sensitive information. Syncfusion Essential PDF is a .NET PDF library used to create, read, and edit PDF documents. Using this library, you can add watermark to PDF file in C# and VB.

public virtual void PrintList(T data) { } } // Derived type must honor constraints. public class MyReadOnlyList<T> : MyList<T> where T : new() { public override void PrintList(T data) { } } Now, unless you plan to build your own generics library, the chances that you will need to build generic class hierarchies are slim to none. Nevertheless, C# does support generic inheritance.

As you saw earlier in the chapter during the examination of the System.Collections.Generic namespace, generic interfaces are also permissible (e.g., IEnumerable<T>). You are, of course, free to define your own generic interfaces (with or without constraints). Assume you wish to define an interface that can perform binary operations on a generic type parameter: public { T T T T } interface IBinaryOperations<T> Add(T arg1, T arg2); Subtract(T arg1, T arg2); Multiply(T arg1, T arg2); Divide(T arg1, T arg2);

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Windows Add a text watermark on PDF in C# sample in C# for ...
15 Oct 2014 ... This sample shows how to add text watermark on every PDF pages in a document using free Spire. PDF with C# .

add watermark to pdf using itextsharp c#

asp.net: Watermark on a Exisiting PDF using iTextsharp Library
25 Feb 2011 ... Watermark on a Exisiting PDF using iTextsharp Library ... Creating a Template For Text Watermark ... 20, byte [] _templateBye = File . .... PDF Library, is another choice for c# developers, it's cheap and easy to ... Add comment ...

add watermark image to pdf using itextsharp c#

How to add watermark image or text in pdf uisng itextsharp at the ...
Dear Sir, How to create watermark image at the time of creation new pf pdf document using itextsharp dll(verison 4.1.6) Kindly help me Regards ...

add watermark image to pdf using itextsharp c#

How To Add Watermark On PDF Files - C# Corner
23 Sep 2015 ... There are two kinds of PDF watermarks : text watermark and image watermark . Text watermark is generally used in commercial field to remind ...

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add watermark to pdf using itextsharp c#

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c# add watermark to existing pdf file using itextsharp

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