add watermark image to pdf using itextsharp c#

watermark (text or image) in existing pdf - Stack Overflow
23 May 2017 ... The following is inspired by 'iText in Action - 2nd Edition' by Bruno Lowagie. I am using iTextSharp version 5.4. The code below adds both a text watermark and ...

Note In this example, the unmanaged function assumes that the string array contains ANSI strings. This

add watermark image to pdf using itextsharp 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 ...

add watermark image to pdf using itextsharp c#

[Solved] How to add watermark image in pdf file - CodeProject
Here is some example for applying watermark in pdf. ... com/post/2011/12/21/Using-iTextSharp-with-aspnet-to-add-watermark-in-pdf-file.aspx[^]

Figure 3-20. Bulk editing cases The bulk editing screen looks very much like the normal case editing screen, but there are several differences: The top of the screen lists all of the cases that will be affected by the editing operation. You can t change the title field (because it wouldn t make sense to assign the same title to a whole group of cases). The various dropdown lists include -- No Change -- as a choice. This allows you to let cases retain their own individual information. The page doesn t display the history of each case, though it does let you enter notes related to this edit.

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add watermark image to pdf using itextsharp c#

Windows Add a text watermark on PDF in C# sample in C# for ...
15 Oct 2014 ... Save Text from PowerPiont to .txt/.doc in C# ... This sample shows how to add text watermark on every PDF pages in a document using free Spire. PDF with C# . ... C# , ASP.NET, WPF, c# control.

add watermark text to pdf using itextsharp c#

Adding Image watermark to Pdf while Creating it using iTextSharp ...
If you want to add an opaque image underneath everything, you should override OnStartPage() instead. ... private Image waterMark ; public MyPageEvent( Image img) { waterMark = img; } public void ... For C# , use this code.

example works because the default marshaling behavior for strings is to assume the strings are ANSI rather than Unicode. If the function expected Unicode strings, we would need to either include the CharSet field of the DllImport attribute or add the MarshalAs attribute to the string array parameter.

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add watermark image to pdf using itextsharp c#

c# add watermark to existing pdf file using itextsharp

Another possible scenario is to allocate an array of empty string buffers and pass them to an unmanaged function to be filled. Here is an example of an unmanaged function that expects a set of empty buffers: void FillStringArray(char* strings[], int size, int maxStringSize) { //update array elements with strings. //no need to allocate new memory since we //have been passed allocated buffers char* resultStrings[] = {"One","Two","Three","Four"}; for(int i = 0; i < size; i++) { if ((int)strlen(resultStrings[i]) < maxStringSize) { strcpy_s(strings[i], maxStringSize, resultStrings[i]); } } } When calling this function, we want to allocate the memory to capture the unmanaged strings and pass a raw array of pointers to the function. To do this, we start by declaring the function with an array of IntPtr like this: [DllImport("FlatAPIStructLib.DLL")] public static extern void FillStringArray( IntPtr[] buffers, int size, int maxStringSize); The array of IntPtr does not require the [In,Out] attributes since IntPtr is a special data type that is passed between managed and unmanaged code as a pointer. The C# code to execute this function follows: //allocate buffers for use by the function IntPtr[] buffers = new IntPtr[3]; const int maxSize = 255; for(int i = 0; i < buffers.Length; i++) { //allocate memory for each element buffers[i] = Marshal.AllocCoTaskMem(maxSize); } //call the function to fill the buffers FillStringArray(buffers, buffers.Length, maxSize); //marshal the IntPtrs to strings string[] strings = new String[buffers.Length]; for(int i = 0; i < buffers.Length; i++)

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Make any changes you like (in this case, selecting Setup as the area) and then click OK to apply the change to all of the selected cases. FogBugz will make the change and then show you a confirming screen, similar to the one in Figure 3-21. If you like, you can use the action buttons to perform further bulk operations here. Alternatively, you can use the menu bar to go back to the original list of cases.

{ strings[i] = Marshal.PtrToStringAnsi(buffers[i]); //free the memory we allocated Marshal.FreeCoTaskMem(buffers[i]); } //show the results Console.WriteLine( "FillStringArray results: {0},{1},{2}", strings[0], strings[1], strings[2]); The Visual Basic .NET implementation looks like this: <DllImport("FlatAPIStructLib.DLL")> _ Public Sub FillStringArray( _ ByVal buffers() As IntPtr, _ ByVal size As Integer, ByVal maxStringSize As Integer) End Sub 'allocate buffers for use by the function Dim buffers(2) As IntPtr Const maxSize As Integer = 255 Dim i As Integer For i = 0 To buffers.Length - 1 buffers(i) = Marshal.AllocCoTaskMem(maxSize) Next 'call the function to fill the buffers FillStringArray(buffers, buffers.Length, maxSize) 'marshal the IntPtrs to strings Dim resultStrings(2) As String For i = 0 To buffers.Length - 1 resultStrings(i) = Marshal.PtrToStringAnsi(buffers(i)) 'free the memory we allocated Marshal.FreeCoTaskMem(buffers(i)) Next 'show the results Console.WriteLine( _ "FillStringArray results: {0},{1},{2}", _ resultStrings(0), resultStrings(1), resultStrings(2)) Notice that since we allocated the memory for each string buffer, we are also responsible for freeing the memory once we have finished with it. When we run the code, we see these results: FillStringArray results: One,Two,Three

pdf watermark c#

[VB.Net] Add watermark to existing Pdf file using iTextSharp -VBForums
Net forum on how to add watermark to Pdf pages. ... adding an image and text as the watermark on each page of a pdf file . ... For those of us who find this solution via a web search and want a C# (C-Sharp) version, here it is, ...

c# add watermark to existing pdf file using itextsharp

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 ...

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add watermark image to pdf using itextsharp c#

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add watermark to pdf using itextsharp c#

add watermark text to pdf using itextsharp c#

add watermark image to pdf using itextsharp c#

add watermark image to pdf using itextsharp c#

add watermark image to pdf using itextsharp c#

add watermark image to pdf using itextsharp c#

add watermark text to pdf using itextsharp c#

add watermark image to pdf using itextsharp c#

c# add watermark to existing pdf file using itextsharp

pdf watermark c#

c# add watermark to existing pdf file using itextsharp