Edit PDF page properties in C++

Use PdfPageEditor to change page sizes, rotation, alignment, transitions, position, and zoom and inspect page boxes.

ProcessPages limits selected edits to specific pages. The per-page rotation sample requires at least three pages. Presentation transitions depend on the viewer displaying the output.

The snippets are independent example functions with their SDK includes and example namespaces. Configure the Aspose.PDF for C++ SDK, supply the input resources referenced by the sample, and choose writable output paths. The examples retain the source field names, page indexes, coordinates, and options.

PdfPageEditor workflows

Change PDF page size

Select page 1 and change its size to Letter.

  1. Create PdfPageEditor.
  2. Bind the PDF input with Facade::BindPdf().
  3. Set process pages through PdfPageEditor using the example values.
  4. Set page size through PdfPageEditor using the example values.
  5. Save the resulting PDF with PdfPageEditor::Save().
#include <Aspose.PDF.Cpp/Facades/PdfPageEditor.h>
#include <Aspose.PDF.Cpp/PageSize.h>
#include <system/array.h>
#include <system/string.h>

namespace Facades::Examples::PDF_PageEditor
{
	using namespace System;
	using namespace Aspose::Pdf;
	using Aspose::Pdf::Facades::PdfPageEditor;

	void ChangePdfPageSize(String inputFile, String outputFile)
	{
		auto editor = MakeObject<PdfPageEditor>();
		editor->BindPdf(inputFile);

		editor->set_ProcessPages(MakeArray<int>({ 1 }));
		editor->set_PageSize(PageSize::get_PageLetter());

		editor->Save(outputFile);
	}
} // namespace Facades::Examples::PDF_PageEditor

Edit PDF pages

Configure page 1 with Ledger size, right alignment, 90-degree rotation, zoom 1, and presentation timing settings.

  1. Create PdfPageEditor.
  2. Bind the PDF input with Facade::BindPdf().
  3. Set process pages through PdfPageEditor using the example values.
  4. Set horizontal alignment through PdfPageEditor using the example values.
  5. Set transition type through PdfPageEditor using the example values.
  6. Set transition duration through PdfPageEditor using the example values.
  7. Set display duration through PdfPageEditor using the example values.
  8. Set page size through PdfPageEditor using the example values.
  9. Set rotation through PdfPageEditor using the example values.
  10. Set zoom through PdfPageEditor using the example values.
  11. Read the page rotation with PdfPageEditor::GetPageRotation().
  12. Read the page count with PdfPageEditor::GetPages().
  13. Save the resulting PDF with PdfPageEditor::Save().
  14. Print the results or diagnostic messages shown in the example.
#include <Aspose.PDF.Cpp/Facades/PdfPageEditor.h>
#include <Aspose.PDF.Cpp/HorizontalAlignment.h>
#include <Aspose.PDF.Cpp/PageSize.h>
#include <iostream>
#include <system/array.h>
#include <system/string.h>

namespace Facades::Examples::PDF_PageEditor
{
using namespace System;
using namespace Aspose::Pdf;
using Aspose::Pdf::Facades::PdfPageEditor;

void EditPdfPages(String inputFile, String outputFile)
{
    auto editor = MakeObject<PdfPageEditor>();
    editor->BindPdf(inputFile);

    editor->set_ProcessPages(MakeArray<int>({1}));
    editor->set_HorizontalAlignment(HorizontalAlignment::Right);
    editor->set_TransitionType(2);
    editor->set_TransitionDuration(5);
    editor->set_DisplayDuration(5);
    editor->set_PageSize(PageSize::get_PageLedger());
    editor->set_Rotation(90);
    editor->set_Zoom(1.0f);
    std::cout << editor->GetPageRotation(1) << std::endl;
    std::cout << editor->GetPages() << std::endl;

    editor->Save(outputFile);
}
} // namespace Facades::Examples::PDF_PageEditor

Get PDF page properties

Write page 1 rotation, total pages, and trim, art, bleed, crop, and media boxes to a text report.

  1. Create PdfPageEditor.
  2. Bind the PDF input with Facade::BindPdf().
  3. Read the page rotation with PdfPageEditor::GetPageRotation().
  4. Read the page count with PdfPageEditor::GetPages().
  5. Read page boxes with PdfPageEditor::GetPageBoxSize().
  6. Write the collected values to the output text file.
#include <Aspose.PDF.Cpp/Facades/PdfPageEditor.h>
#include <drawing/rectangle.h>
#include <iostream>
#include <string>
#include <system/io/file.h>
#include <system/io/file_stream.h>
#include <system/string.h>

namespace Facades::Examples::PDF_PageEditor
{
using namespace System;
using namespace Aspose::Pdf;
using Aspose::Pdf::Facades::PdfPageEditor;

void GetPdfPageProperties(String inputFile, String outputFile)
{
    auto editor = MakeObject<PdfPageEditor>();
    editor->BindPdf(inputFile);
    String report =
        String::Format(u"Page 1 Rotation: {0}\nTotal Pages: {1}\n", editor->GetPageRotation(1), editor->GetPages());
    for (const auto &box : {u"trim", u"art", u"bleed", u"crop", u"media"})
        report += String(box) + u": " + editor->GetPageBoxSize(1, box).ToString() + u"\n";
    std::cout << report << std::endl;
    System::IO::File::WriteAllText(outputFile, report);
}
} // namespace Facades::Examples::PDF_PageEditor

Set individual page rotations

Assign rotations of 90, 180, and 270 degrees to pages 1, 2, and 3.

  1. Create PdfPageEditor.
  2. Bind the PDF input with Facade::BindPdf().
  3. Set page rotations through PdfPageEditor using the example values.
  4. Save the resulting PDF with PdfPageEditor::Save().
#include <Aspose.PDF.Cpp/Facades/PdfPageEditor.h>
#include <system/collections/dictionary.h>
#include <system/string.h>

namespace Facades::Examples::PDF_PageEditor
{
using namespace System;
using namespace Aspose::Pdf;
using Aspose::Pdf::Facades::PdfPageEditor;

void RotatePages1(String inputFile, String outputFile)
{
    auto editor = MakeObject<PdfPageEditor>();
    editor->BindPdf(inputFile);

    auto rotations = MakeObject<System::Collections::Generic::Dictionary<int, int>>();
    rotations->Add(1, 90);
    rotations->Add(2, 180);
    rotations->Add(3, 270);
    editor->set_PageRotations(rotations);

    editor->Save(outputFile);
}
} // namespace Facades::Examples::PDF_PageEditor

Rotate selected pages

Rotate pages 1 and 3 by 90 degrees.

  1. Create PdfPageEditor.
  2. Bind the PDF input with Facade::BindPdf().
  3. Set process pages through PdfPageEditor using the example values.
  4. Set rotation through PdfPageEditor using the example values.
  5. Save the resulting PDF with PdfPageEditor::Save().
#include <Aspose.PDF.Cpp/Facades/PdfPageEditor.h>
#include <system/array.h>
#include <system/string.h>

namespace Facades::Examples::PDF_PageEditor
{
using namespace System;
using namespace Aspose::Pdf;
using Aspose::Pdf::Facades::PdfPageEditor;

void RotatePages2(String inputFile, String outputFile)
{
    auto editor = MakeObject<PdfPageEditor>();
    editor->BindPdf(inputFile);

    editor->set_ProcessPages(MakeArray<int>({1, 3}));
    editor->set_Rotation(90);

    editor->Save(outputFile);
}
} // namespace Facades::Examples::PDF_PageEditor

Set PDF page properties

Move page content by (100, 100) and set zoom to 2.

  1. Create PdfPageEditor.
  2. Bind the PDF input with Facade::BindPdf().
  3. Move page content with PdfPageEditor::MovePosition().
  4. Set zoom through PdfPageEditor using the example values.
  5. Save the resulting PDF with PdfPageEditor::Save().
#include <Aspose.PDF.Cpp/Facades/PdfPageEditor.h>
#include <system/string.h>

namespace Facades::Examples::PDF_PageEditor
{
using namespace System;
using namespace Aspose::Pdf;
using Aspose::Pdf::Facades::PdfPageEditor;

void SetPdfPageProperties(String inputFile, String outputFile)
{
    auto editor = MakeObject<PdfPageEditor>();
    editor->BindPdf(inputFile);

    editor->MovePosition(100, 100);
    editor->set_Zoom(2.0f);

    editor->Save(outputFile);
}
} // namespace Facades::Examples::PDF_PageEditor
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