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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 ...

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Just about any small PNP switching transistor should work as long as it can handle the current required by your LCD module. If your LCD draws less than 100mA, you can use something like the extremely common BC557 or 2N2907. Some backlights can draw more than 200mA, which means you ll need to use a slightly higher rated transistor such as a 2N3906. We mounted the transistor and resistor directly on the back of the LCD, with the lead from the resistor to Arduino digital pin 5 running to a male breakaway header. We soldered a short length of female header to the top of the prototyping shield to allow the connection to be easily removed.

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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#

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 ...

void UseStringArray(IArraysPtr comObj) { //create a safearray SAFEARRAY* pSafeArray; SAFEARRAYBOUND saBound[1]; saBound[0].lLbound = 0; saBound[0].cElements = 3; pSafeArray = SafeArrayCreate(VT_BSTR, 1, saBound); //populate the elements in the array BSTR *pBSTR; SafeArrayAccessData(pSafeArray, (void HUGEP**)&pBSTR); pBSTR[0] = CComBSTR(L"one").Detach(); pBSTR[1] = CComBSTR(L"two").Detach(); pBSTR[2] = CComBSTR(L"three").Detach(); SafeArrayUnaccessData(pSafeArray); //attempt to update the string array. We should not //see changes made to the array since the COM method //is marked with the [In] attribute int result = comObj->UpdateStringArrayInOnly(&pSafeArray); _cprintf("UpdateStringArrayInOnly: %i \r\n", result); DisplayStringArray(pSafeArray); //this should update the string array successfully result = comObj->UpdateStringArray(&pSafeArray); _cprintf("UpdateStringArray: %i \r\n", result); DisplayStringArray(pSafeArray); //pass the safearray by value instead of by reference result = comObj->SumStringArrayByValue(pSafeArray); _cprintf("SumStringArrayByValue: %i \r\n", result); //clean up the safe array SafeArrayDestroy(pSafeArray); } void DisplayStringArray(SAFEARRAY* pSafeArray) { BSTR *pBSTR; SafeArrayAccessData(pSafeArray, (void **)&pBSTR); for(int i = 0; i < 3; i++) { _cprintf("BSTR element: %S \r\n", pBSTR[i]); } SafeArrayUnaccessData(pSafeArray); }

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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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void UseIntArray(IArraysPtr comObj) { //create a safearray SAFEARRAY* pSafeArray; SAFEARRAYBOUND saBound[1]; saBound[0].lLbound = 0; saBound[0].cElements = 3; pSafeArray = SafeArrayCreate(VT_I4, 1, saBound); //populate the elements in the array int *pInt; SafeArrayAccessData(pSafeArray, (void HUGEP**)&pInt); pInt[0] = 111; pInt[1] = 222; pInt[2] = 333; SafeArrayUnaccessData(pSafeArray); //attempt to update the integer array. We should not //see changes made to the array since the COM method //is marked with the [In] attribute int result = comObj->UpdateIntArrayInOnly(&pSafeArray); _cprintf("UpdateIntArrayInOnly: %i \r\n", result); DisplayIntArray(pSafeArray); //this should successfully update the array result = comObj->UpdateIntArray(&pSafeArray); _cprintf("UpdateIntArray: %i \r\n", result); DisplayIntArray(pSafeArray); //attempt to update the integer array passed by value. result = comObj->UpdateIntArrayByValue(pSafeArray); _cprintf("UpdateIntArrayByValue: %i \r\n", result); DisplayIntArray(pSafeArray); //attempt to update the integer array passed by value //but this time the method has the [In,Out] attributes added. result = comObj->UpdateIntArrayByValueInOut(pSafeArray); _cprintf("UpdateIntArrayByValueInOut: %i \r\n", result); DisplayIntArray(pSafeArray); //clean up the safe array SafeArrayDestroy(pSafeArray); } void DisplayIntArray(SAFEARRAY* pSafeArray) { int* pInt;

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C# demo to guide how to watermark PDF file, stamping text and image watermark to PDF document in C# language.

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

We wanted a simple way to turn logging on and off, and a pushbutton works very nicely when combined with an interrupt input By using a button with a center LED, it s possible to have it display the current logging status, so we chose a button with a blue LED mounted in it You could, of course, simply use a separate LED and a regular button, but having them integrated into a single unit makes the result look a bit nicer and makes it more obvious that the logging state and the button are associated The button connects between ground and Arduino digital I/O line 3 using a 1K resistor I/O line 3 is also connected to +5V via a 20K pull-up resistor inside the ATMega CPU itself.

SafeArrayAccessData(pSafeArray, (void **)&pInt); for(int i = 0; i < 3; i++) { _cprintf("Int element: %i \r\n", pInt[i]); } SafeArrayUnaccessData(pSafeArray); }

Figure 6-5 shows the tester s view of the bug at this point. You ll see that in addition to the usual FogBugz information, FogBugz has added a number of hyperlinks in the Checkins area.

The internal pull-up resistor is activated in the software by setting the pin to INPUT mode and then performing a digitalWrite() to set it to a HIGH state, so when the switch is open (off) the input will be biased high When the switch is closed (on) the input is pulled low through the button via the 1K resistor Because it s only a momentary-action button that is on while pressed, sensing the mode is not quite as simple as checking the state of the input on each pass through the main program loop Instead, the button is connected to digital I/O line 3 so that we can attach an interrupt to it in the sketch, and when the input transitions from a high (unpressed) state to a low (pressed) state, an ISR (interrupt service routine) is called.

Note In order for this example code to compile, you also need to declare the functions in the stdafx.h