Documentation – PDF Metadata in C++

Cpp: Clear PDF Metadata in C++

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

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

Clear PDF metadata

Clear document information, save the output, and close PdfFileInfo.

Create PdfFileInfo with the input PDF path.
Clear document information with PdfFileInfo::ClearInfo().
Save the resulting PDF with PdfFileInfo::Save().
Close the facade with PdfFileInfo::Close().

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

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

	void ClearPdfMetadata(String inputFile, String outputFile)
	{
		auto pdfInfo = MakeObject<PdfFileInfo>(inputFile);
		pdfInfo->ClearInfo();
		pdfInfo->Save(outputFile);
		pdfInfo->Close();
	}
} // namespace Facades::Examples::PDF_FileInfo

Cpp: Get PDF Metadata in C++

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

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

Get PDF metadata

Print document information, file-status flags, and the custom Reviewer metadata value when available.

Create PdfFileInfo with the input PDF path.
Read subject through PdfFileInfo.
Read title through PdfFileInfo.
Read keywords through PdfFileInfo.
Read creator through PdfFileInfo.
Read creation date through PdfFileInfo.
Read mod date through PdfFileInfo.
Read is pdf file through PdfFileInfo.
Read is encrypted through PdfFileInfo.
Read has open password through PdfFileInfo.
Read has edit password through PdfFileInfo.
Read has collection through PdfFileInfo.
Read custom metadata with PdfFileInfo::GetMetaInfo().
Close the facade with PdfFileInfo::Close().
Print the results or diagnostic messages shown in the example.

#include <Aspose.PDF.Cpp/Facades/PdfFileInfo.h>
#include <iostream>
#include <system/string.h>

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

void GetPdfMetadata(String inputFile)
{
    auto pdfInfo = MakeObject<PdfFileInfo>(inputFile);
    std::cout << "Subject: " << pdfInfo->get_Subject() << std::endl;
    std::cout << "Title: " << pdfInfo->get_Title() << std::endl;
    std::cout << "Keywords: " << pdfInfo->get_Keywords() << std::endl;
    std::cout << "Creator: " << pdfInfo->get_Creator() << std::endl;
    std::cout << "Creation Date: " << pdfInfo->get_CreationDate() << std::endl;
    std::cout << "Modification Date: " << pdfInfo->get_ModDate() << std::endl;
    std::cout << "Is Valid PDF: " << pdfInfo->get_IsPdfFile() << std::endl;
    std::cout << "Is Encrypted: " << pdfInfo->get_IsEncrypted() << std::endl;
    std::cout << "Has Open Password: " << pdfInfo->get_HasOpenPassword() << std::endl;
    std::cout << "Has Edit Password: " << pdfInfo->get_HasEditPassword() << std::endl;
    std::cout << "Is Portfolio: " << pdfInfo->get_HasCollection() << std::endl;
    auto reviewer = pdfInfo->GetMetaInfo(u"Reviewer");
    std::cout << "Reviewer: " << (reviewer.IsNullOrEmpty() ? String(u"No Reviewer metadata found.") : reviewer) << std::endl;
    pdfInfo->Close();
}
} // namespace  Facades::Examples::PDF_FileInfo

Cpp: Save Metadata with XMP in C++

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

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

Save info with XMP

Set subject, title, keywords, and creator and save the updated document information with XMP.

Create PdfFileInfo with the input PDF path.
Set subject through PdfFileInfo using the example values.
Set title through PdfFileInfo using the example values.
Set keywords through PdfFileInfo using the example values.
Set creator through PdfFileInfo using the example values.
Save document information and XMP with PdfFileInfo::SaveNewInfoWithXmp().
Close the facade with PdfFileInfo::Close().

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

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

	void SaveInfoWithXmp(String inputFile, String outputFile)
	{
		auto pdfInfo = MakeObject<PdfFileInfo>(inputFile);
		pdfInfo->set_Subject(u"Aspose PDF for C++");
		pdfInfo->set_Title(u"Aspose PDF for C++");
		pdfInfo->set_Keywords(u"Aspose, PDF, C++");
		pdfInfo->set_Creator(u"Aspose Team");
		pdfInfo->SaveNewInfoWithXmp(outputFile);
		pdfInfo->Close();
	}
} // namespace Facades::Examples::PDF_FileInfo

Cpp: Set PDF Metadata in C++

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

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

Set PDF metadata

Set standard document information and the custom CustomKey value.

Create PdfFileInfo with the input PDF path.
Set subject through PdfFileInfo using the example values.
Set title through PdfFileInfo using the example values.
Set keywords through PdfFileInfo using the example values.
Set creator through PdfFileInfo using the example values.
Set custom metadata with PdfFileInfo::SetMetaInfo().
Save the resulting PDF with PdfFileInfo::Save().
Close the facade with PdfFileInfo::Close().

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

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

void SetPdfMetadata(String inputFile, String outputFile)
{
    auto pdfInfo = MakeObject<PdfFileInfo>(inputFile);
    pdfInfo->set_Subject(u"Aspose PDF for C++");
    pdfInfo->set_Title(u"Aspose PDF for C++");
    pdfInfo->set_Keywords(u"Aspose, PDF, C++");
    pdfInfo->set_Creator(u"Aspose Team");
    pdfInfo->SetMetaInfo(u"CustomKey", u"CustomValue");
    pdfInfo->Save(outputFile);
    pdfInfo->Close();
}
} // namespace Facades::Examples::PDF_FileInfo