Documentation – Page Layout and Margins in C++

Cpp: Add Margins to PDF Pages in C++

Mon, 09 Nov 2026 00:00:00 +0000

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

Add margins to PDF pages

Apply margins of 36 points on each side of pages 1 and 3.

Create PdfFileEditor.
Apply page margins with PdfFileEditor::AddMargins().

#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 AddMarginsToPdfPages(String inputFile, String outputFile)
	{
		auto pdfEditor = MakeObject<PdfFileEditor>();
		pdfEditor->AddMargins(inputFile, outputFile, MakeArray<int32_t>({ 1, 3 }), 36, 36, 36, 36);
	}
} // namespace  Facades::Examples::PDF_FileEditor

Cpp: Add Page Breaks in PDF in C++

Mon, 09 Nov 2026 00:00:00 +0000

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

Add page breaks in PDF

Insert a page break on page 1 at the position specified by 400.

Create PdfFileEditor.
Insert the page break with PdfFileEditor::AddPageBreak().

#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 AddPageBreaksInPdf(String inputFile, String outputFile)
{
    auto pdfEditor = MakeObject<PdfFileEditor>();
    pdfEditor->AddPageBreak(
        inputFile, outputFile,
        MakeArray<SharedPtr<PdfFileEditor::PageBreak>>({MakeObject<PdfFileEditor::PageBreak>(1, 400)}));
}
} // namespace  Facades::Examples::PDF_FileEditor

Cpp: Resize PDF Page Contents in C++

Mon, 09 Nov 2026 00:00:00 +0000

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.

Create PdfFileEditor.
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.

Create PdfFileEditor.
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