Aspose.PDF.Cpp.FOSS 1.0.1

Aspose.PDF FOSS for C++

A free, open-source (MIT) C++20 library for working with PDF documents. It has no third-party runtime dependencies: every codec and the page rasteriser are implemented from scratch. Its public API is a strict subset of Aspose.PDF for .NET.

This package is the native static library for Visual Studio C++ projects (MSBuild), built for x64, x86 and ARM64 in both Release and Debug.

What it does

• Open, edit and save PDF documents, including password-protected files.
• Extract text from a whole document, a single page, or as positioned fragments.
• Render pages to PNG, JPEG, BMP and TIFF, including multi-page and palettised TIFF.
• Create documents with text, tables, vector graphics, images and watermarks.
• Add annotations and AcroForm fields, and flatten forms.
• Encrypt and decrypt with RC4-40/128 and AES-128/256, and add detached PKCS#7 signatures.
• Work with bookmarks, named destinations, page labels, embedded files and metadata.
• Use the classic Facades API (PdfConverter, PdfExtractor, PdfFileEditor, and others).

Usage

Install the package into a C++ project (Manage NuGet Packages → Aspose.PDF.Cpp.FOSS). The package does the rest:

• adds the include directory;
• links the library that matches your platform and configuration;
• raises the project's language standard to C++20 if it is set lower.

#include <aspose.pdf.foss.hpp>
#include <fstream>
#include <iostream>

int main() {
    Aspose::Pdf::Document doc("input.pdf");
    std::cout << "Pages: " << doc.Pages().Count() << "\n";

    Aspose::Pdf::Text::TextAbsorber absorber;
    absorber.Visit(doc);
    std::cout << absorber.Text() << "\n";

    Aspose::Pdf::Devices::PngDevice png(Aspose::Pdf::Devices::Resolution(150));
    std::ofstream out("page1.png", std::ios::binary);
    png.Process(doc.Pages()[1], out);
}

Requirements

• Visual Studio 2022 (MSVC toolset v143) or newer.
• Platform x64, Win32 or ARM64.
• The DLL C runtime: /MD for Release or /MDd for Debug. This is the Visual Studio default, and the package warns if the project uses the static runtime (/MT, /MTd).
• Debug or Release is picked from UseDebugLibraries, which Visual Studio sets for Debug configurations.

To stop the package from changing the language standard, or from linking the library automatically, set these properties in your project or in a Directory.Build.props:

<AsposePdfFossSetLanguageStandard>false</AsposePdfFossSetLanguageStandard>
<AsposePdfFossLinkLibrary>false</AsposePdfFossLinkLibrary>

CMake users, and Linux users, can use the find_package-ready archives attached to each GitHub release.

Links

• Source code and examples
• Getting started guide
• API reference
• Changelog
• Issues

License

The library is licensed under the MIT License. It compiles in the Liberation fonts, which are licensed under the SIL Open Font License 1.1, so the package license is MIT AND OFL-1.1. The full license texts are in the package's licenses/ folder.