Insert or Delete Text/Image Watermark in a PDF File using C++

01 Insert or Delete Text and Image Watermark in a PDF File using CPP

Insert or Delete Text/Image Watermark in a PDF File using C++

Add-Image-Watermark.cpp

// Open the source PDF document
auto pdfDocument = MakeObject<Document>(u"SourceDirectory\\Sample 1.pdf");

// Create an instance of the ImageStamp class
System::SharedPtr<ImageStamp> imageStamp = MakeObject<ImageStamp>(u"SourceDirectory\\aspose.png");

// Set the position of the watermark
imageStamp->set_XIndent(150);
imageStamp->set_YIndent(350);

// Set other properties
imageStamp->set_Height(100);
imageStamp->set_Width(300);
imageStamp->set_RotateAngle(45);
imageStamp->set_Opacity(0.4);
imageStamp->setStampId(12345678);

// Add watermark to the PDF page
pdfDocument->get_Pages()->idx_get(1)->AddStamp(imageStamp);

// Save the PDF file
pdfDocument->Save(u"OutputDirectory\\Image-Watermark-Out.pdf", SaveFormat::Pdf);

Add-Text-Watermark.cpp

// Open the source PDF document
auto pdfDocument = MakeObject<Document>(u"SourceDirectory\\Sample 1.pdf");

// Create an instance of the TextStamp class
System::SharedPtr<TextStamp> textStamp = MakeObject<TextStamp>(u"CONFIDENTIAL");

// Set the position of the watermark
textStamp->set_XIndent(70);
textStamp->set_YIndent(300);

// Set text properties
textStamp->get_TextState()->set_Font(FontRepository::FindFont(u"Arial"));
textStamp->get_TextState()->set_FontSize(72.0F);
textStamp->get_TextState()->set_ForegroundColor(Aspose::Pdf::Color::get_Red());
textStamp->set_Opacity(0.4);
textStamp->set_RotateAngle(45);
textStamp->setStampId(123456);

// Add watermark to the PDF page
pdfDocument->get_Pages()->idx_get(1)->AddStamp(textStamp);

// Save the PDF file
pdfDocument->Save(u"OutputDirectory\\Text-Watermark-Out.pdf", SaveFormat::Pdf);

Remove-Watermark.cpp

// Create an instance of the PdfContentEditor class
System::SharedPtr<PdfContentEditor> contentEditor = MakeObject<PdfContentEditor>();

// Open the PDF file containing the watermark
contentEditor->BindPdf(u"SourceDirectory\\SampleImageWatermark.pdf");

// Delete watermark by id
contentEditor->DeleteStampById(12345678);

// Save the PDF file
pdfDocument->Save(u"OutputDirectory\\Remove-Watermark-Out.pdf", SaveFormat::Pdf);