Extract an Image from a Stamp in C++

Use PdfContentEditor for this task. The examples below retain the original C++ code and API Reference steps.

Extract image from stamp

Read page 1 stamps and save the first stamp image as PNG. Throw an error if no stamps are found.

1. Create PdfContentEditor.
2. Bind the PDF input with Facade::BindPdf().
3. Read page stamp information with PdfContentEditor::GetStamps().

#include <Aspose.PDF.Cpp/Facades/PdfContentEditor.h>
#include <Aspose.PDF.Cpp/Facades/StampInfo.h>
#include <Aspose.PDF.Cpp/Presentation/IndependentImpl/ImageFormat.h>
#include <drawing/image.h>
#include <drawing/imaging/image_format.h>
#include <stdexcept>
#include <system/string.h>

namespace Facades::Examples::PDF_ContentEditor
{
using namespace System;
using namespace Aspose::Pdf;
using namespace Aspose::Pdf::Facades;

void ExtractImageFromStamp(String inputFile, String outputFile)
{
    auto editor = MakeObject<PdfContentEditor>();
    editor->BindPdf(inputFile);
    auto infos = editor->GetStamps(1);
    if (infos->get_Length() == 0)
        throw std::runtime_error("No stamps found");
    infos->idx_get(0)->get_Image()->Save(outputFile, System::Drawing::Imaging::ImageFormat::get_Png());
}
} // namespace Facades::Examples::PDF_ContentEditor