add image watermark to pdf c#

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.

add watermark to pdf c#

iText 5-legacy : 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.

APPENDIX A Setting Up FogBugz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

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add watermark to pdf using itextsharp c#

[Solved] How to add watermark image in pdf file - CodeProject
Here is some example for applying watermark in pdf . ... Image img = iTextSharp . text . ... Watermarking PDF documents using HttpHandlers[^].

add image watermark to pdf 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 ...

public void ProcessFile() { //define constants needed by the Win32 functions const int INVALID_HANDLE_VALUE = -1; const uint FILE_SHARE_READ = 0x00000001; const uint FILE_SHARE_WRITE = 0x00000002; const uint CREATE_ALWAYS = 2; const uint OPEN_EXISTING = 3; const uint FILE_ATTRIBUTE_NORMAL = 0x00000080; const uint GENERIC_WRITE = 0x40000000; //get the current directory StringBuilder currDir = new StringBuilder(255); int charsWritten = GetCurrentDirectory(currDir.Capacity, currDir); if (charsWritten == 0) { CheckLastResult(); } //create a new subdirectory under the current one String newDir = Path.Combine(currDir.ToString(), "MyTestDir"); if (!CreateDirectory(newDir, IntPtr.Zero)) { CheckLastResult(); } //declare file handles that we will use IntPtr fileHandle = IntPtr.Zero; IntPtr copiedFileHandle = IntPtr.Zero; //open a file for writing try { String fileName = Path.Combine(newDir, "MyTestFile.txt"); fileHandle = CreateFile( fileName, GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, IntPtr.Zero, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, IntPtr.Zero); //check for invalid handle to see if this worked if (fileHandle.ToInt32() == INVALID_HANDLE_VALUE) { CheckLastResult(); }

add watermark text to pdf using itextsharp c#

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 .

c# add watermark to existing pdf file using itextsharp

Using iTextSharp To Watermark /Write Text To Existing PDF's ...
11 May 2008 ... Using iTextSharp To Watermark /Write Text To Existing PDF's . May 11 ... 17 /// < param name="sourceFile">The PDf File </param> 18 /// <param ...

Note that the example program disables interrupts while sending data to the host This is important because otherwise it may end up in a situation where the next pulse arrives before the transmission has finished, and the interrupt could cause problems for the serial connection While interrupts are disabled the CPU will still see additional interrupts at the hardware level and set an internal flag that says an interrupt has occurred, but it won't be allowed to disrupt the flow of the program because ISRs cannot be executed in a stacked or nested fashion Only one can ever be in operation at a given time Then, when the ISR finishes executing, the CPU could immediately trigger another ISR call if the interrupt flag has been set in the background.

//write data to the file //Note: Unicode files can be distinguished by the presence //of the byte order mark (U+FEFF), which is represented //as hexadecimal 0xFF 0xFE on little-endian platforms. //we need to manually add these first 2 bytes to the //file since Win32 doesn't do it for us. String testData = "this is the file test data"; int bytesNeeded = Encoding.Unicode.GetByteCount(testData) + 2; byte[] testBytes = new byte[bytesNeeded]; Encoding.Unicode.GetBytes( testData, 0, testData.Length, testBytes, 2); //add the byte order mark as the first 2 bytes testBytes[0] = 0xFF; testBytes[1] = 0xFE; //now write the byte array uint bytesWritten = 0; if (!WriteFile(fileHandle, testBytes, (uint)(testBytes.Length), ref bytesWritten, IntPtr.Zero)) { CheckLastResult(); } Console.WriteLine( "Win32 Bytes written: {0}", bytesWritten); //get the total file size int fileSize = GetFileSize(fileHandle, IntPtr.Zero); if (fileSize == 0) { CheckLastResult(); } Console.WriteLine("Win32 File size: {0}", fileSize); //close the file handle CloseHandle(fileHandle); fileHandle = IntPtr.Zero; //copy the file String copiedFileName = Path.Combine(newDir,"MyCopiedFile.txt"); if (!CopyFile(fileName, copiedFileName, false)) { CheckLastResult(); }

It's fairly common for interrupt-heavy systems to spend time processing an ISR, return, and be immediately shunted into another ISR without the main program code getting a chance to do any processing at all One thing to remember, however, is that the interrupt flag in the CPU is only a 1-bit flag If you spend time with interrupts disabled and in that time an event occurs to set the flag, you have no way of knowing if it was only one event or one thousand The CPU doesn't have an internal counter to keep track of how many times the interrupt was tripped There is therefore the very real possibility of undercounting events such as input pulses if you spend too long with interrupts disabled In this project it's not a problem because the pulse rate is never particularly high.

add watermark to pdf c#

Add Text Watermark and Image Watermark to PDF in C# .NET ...
C# demo to guide how to watermark PDF file, stamping text and image watermark to PDF document in C# language.

add watermark to pdf c#

How to add watermark to pdf document ( c# sample) - Apitron
Watermark is usually a semitransparent drawing added on top of the page content which can be created using various ways. This type of marking your ...

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add image watermark to pdf c#

add watermark to pdf using itextsharp c#

add watermark to pdf c#

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add image watermark to pdf c#

add watermark to pdf c#

add watermark to pdf using itextsharp c#

add image watermark to pdf c#

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c# add watermark to existing pdf file using itextsharp

add watermark to pdf c#

add watermark to pdf c#