add image watermark to pdf c#

How to add a watermark to a PDF file? - Stack Overflow
The fact that the file size increases is a good indication that the watermark is added. The main problem is that you're adding the watermark ...

After setting up the properties of a ServiceConfig object, we call the static Enter method of ServiceDomain. At this point we are running within the context that COM+ created. If we were to view the Running Processes within the Component Services Management Console plug-in, we would see our process running as if it were a COM+ component. Since we set the Transaction property of the ServiceConfig object to Required, we now have a transaction. To prove this, we use the TransactionLogger class that we developed in an earlier recipe. This logs the state of the transaction immediately upon construction as well as at completion of the transaction. Depending on a parameter passed to the test method, we call either SetComplete or SetAbort using the ContextUtil class. This places our transaction vote within this COM+ context. Finally, we call the static Leave method of the ServiceDomain class. This exits the context and also causes the transaction to be completed. Based on our vote, it will either be committed or aborted at this point. Here is the same class implemented in Visual Basic .NET (VB.NET): Imports System.EnterpriseServices Imports DniScServicesVB.TransactionLogging Public Interface IServicesWithoutComponents Sub UseComPlusServices(ByVal succeed As Boolean) End Interface Public Class DniScServicesObj Implements IServicesWithoutComponents Public Sub UseComPlusServices(ByVal succeed As Boolean) _ Implements IServicesWithoutComponents.UseComPlusServices 'configure the COM+ services Dim config As ServiceConfig _ = New ServiceConfig() config.Transaction = TransactionOption.Required config.TrackingAppName = "ServicesWithoutComponents" config.TrackingComponentName = "DniScServicesObj" config.TrackingEnabled = True Try 'enter a COM+ context ServiceDomain.Enter(config) 'log the transaction Dim log As TransactionLogger _ = New TransactionLogger(Me) 'do work here involving one or more 'resources such as a database or queue

add image watermark to pdf c#

Watermark pdf in C# - asp.net tips and tricks
14 Jan 2017 ... Add the following functions. using iTextSharp . text ; using iTextSharp . text . pdf ; using System.IO; public Paragraph AddParagragh(string ...

add watermark to pdf 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.

Figure 4-5. Using the virtual USB keyboard as a custom game controller We also connected a Nintendo DS touch screen to another Arduino as described in the Touch Control Panel project in 8 and ran a program that defined different regions on the screen for left, right, and fire. We then linked the two Arduinos together with the digital outputs from the touch screen Arduino connected to digital inputs on the USB keyboard Arduino to give touch screen control of Frozen Bubble. There are videos of both systems in action on the Practical Arduino site.

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add image watermark to pdf c#

Add Watermark in PDF in C# , VB.NET - E-iceblue
There are two kinds of PDF watermarks : text watermark and image watermark . Text watermark is generally used in commercial field to show the background ...

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'complete or abort the transaction If succeed Then ContextUtil.SetComplete() Else ContextUtil.SetAbort() End If Finally 'leave the COM+ context ServiceDomain.Leave() End Try End Sub End Class Here is the C# console application that executes the C# implementation of this test class. To use the VB.NET version instead, you reference the VB.NET project instead of the C# project and change the using DniScServices statement to using DniScServicesVB: using System; using DniScServices; namespace ScServicesWithoutComponents { class Program { static void Main(string[] args) { IServicesWithoutComponents obj = new DniScServicesObj(); //execute a test that completes the transaction obj.UseComPlusServices(true); //give the transaction logs time to clean up System.Threading.Thread.Sleep(200); //execute another test that aborts the transaction obj.UseComPlusServices(false); Console.WriteLine("Press enter to continue"); Console.Read(); } } } We call the UseComPlusServices test method twice. The first time we pass true, which results in a completed transaction. The second time, we pass false, and the transaction should be aborted.

add image watermark to pdf c#

pdf watermark c#

Add Watermark to PDFs using iTextSharp – An eye for change….
Apr 16, 2015 · ... you can use iTextSharp in c# projects to add watermark to your PDFs. ... are not aware of iTextSharp, it is basically a .net PDF library which is ...

A chording keyboard is a special type of input device that has a very small number of buttons compared to the number of characters it can send: rather than having one button for each letter of the alphabet like a normal keyboard, a chording keyboard allows you to press a combination ( chord ) of keys at once to select the letter you want. A five-button chording keyboard can be comfortably held in a one-handed grip and allow the operator to type a huge number of different characters by simultaneously pressing several keys, with the added advantage that it doesn t need to be placed on a surface to be used: you can even walk around with a chording keyboard in one hand and type while on the move.

Clearly, placing the code that calls unmanaged functions in a small wrapper class has advantages By doing this, you isolate the code that has intimate knowledge of how to call the unmanaged function And you limit the exposure of marshaling, data-conversion, and memorymanagement code, keeping it private within the wrapper This is especially important if you are using C++ Interop, since there will generally be more code written to perform the marshaling By far, the greatest advantage to managed wrappers is the ease of interoperability it facilitates with other NET languages As you ve seen, any NET language can very easily make use of the wrapper, without the special attributes and procedures associated with unmanaged interop As far as C++ Interop goes, it has its place in your arsenal of NET weapons But it is not an answer to all interop problems.

add image watermark to pdf c#

How to add watermark to pdf document ( c# sample) - Apitron
See the C# code snippet below that shows how to add image watermark : ... This type of watermark assumes basic knowledge of PDF drawing system. Using this ...

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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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