Resize PDF Page Contents in C++

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

Resize PDF page contents

Resize content on pages 1 and 3 using dimensions 400 and 750. Throw an error if ResizeContents returns false.

1. Create PdfFileEditor.
2. Resize page content with PdfFileEditor::ResizeContents().

#include <Aspose.PDF.Cpp/Facades/PdfFileEditor.h>
#include <stdexcept>
#include <system/array.h>
#include <system/string.h>

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

void ResizePdfPageContents(String inputFile, String outputFile)
{
    auto pdfEditor = MakeObject<PdfFileEditor>();
    if (!pdfEditor->ResizeContents(inputFile, outputFile, MakeArray<int32_t>({1, 3}), 400, 750))
    {
        throw std::runtime_error("Failed to resize PDF page contents.");
    }
}
} // namespace  Facades::Examples::PDF_FileEditor

Resize content with percentage margins

Resize content on pages 1 and 2 using percentage-based margins of 10 on each side.

1. Create PdfFileEditor.
2. Resize page content with PdfFileEditor::ResizeContents().

#include <Aspose.PDF.Cpp/Facades/PdfFileEditor.h>
#include <system/array.h>
#include <system/string.h>

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

void ResizePdfPageContents2(String inputFile, String outputFile)
{
    auto fileEditor = MakeObject<PdfFileEditor>();

    auto parameters = MakeObject<PdfFileEditor::ContentsResizeParameters>(

        PdfFileEditor::ContentsResizeValue::Percents(10),

        nullptr,

        PdfFileEditor::ContentsResizeValue::Percents(10),

        PdfFileEditor::ContentsResizeValue::Percents(10),

        nullptr,

        PdfFileEditor::ContentsResizeValue::Percents(10));

    fileEditor->ResizeContents(inputFile, outputFile, MakeArray<int32_t>({1, 2}), parameters);
}
} // namespace  Facades::Examples::PDF_FileEditor