PDFSharp

com.sky.pdfsharp is a Unity package that exposes itself as PDFSharp and packages the PDFsharp Core build with a small convenience API for lightweight PDF text extraction.

This repository currently bundles PDFsharp 7.0.0-preview-1 from the upstream PDFsharp NuGet package:

• upstream package: https://www.nuget.org/packages/PDFsharp/7.0.0-preview-1
• upstream repository: https://github.com/empira/PDFsharp

What This Package Provides

• bundled PDFsharp assemblies under Runtime/Plugins/
• a tiny text extraction API in the Sky.PdfSharp namespace

The wrapper API currently provides:

• extracting lightweight text from page content streams

The bundled upstream assemblies remain available to consumers through Unity's normal assembly reference flow.

Package Layout

• Runtime/Plugins/ - bundled upstream PDFsharp assemblies
• Runtime/ - wrapper API under the Sky.PdfSharp namespace
• LICENSE - license for this repository's wrapper/source files
• THIRD_PARTY_NOTICES.md - notices for bundled third-party binaries

Quick Start

Add the package to a Unity project, then call:

using Sky.PdfSharp;

string text = PdfSharpTextExtractor.ExtractText("/absolute/path/to/document.pdf");
UnityEngine.Debug.Log(text);

Compatibility Notes

• This package targets Unity 2021.3 or newer.
• The bundled PDFsharp binaries are based on the upstream netstandard2.0 build of 7.0.0-preview-1.
• The wrapper in this repository is aimed at lightweight text-reading workflows. Broader PDFsharp usage in Unity should be validated in your target project before shipping.
• This package bundles the additional dependency assemblies required by upstream preview 7.0.0-preview-1, including Microsoft.Extensions.Logging.Abstractions, System.Security.Cryptography.Pkcs, System.Memory, System.Buffers, System.Numerics.Vectors, and related support libraries.

Scope Notes

• This package exposes lightweight content-stream text extraction, not full document reconstruction.
• Scanned PDFs still require OCR-oriented tooling.
• Text extraction quality depends on the PDF's content streams and may miss layout-heavy or unusual documents.
• If you need full document generation or modification features, refer to the upstream PDFsharp API and documentation.

Licensing

This repository contains:

• original wrapper/sample code licensed under MIT in LICENSE
• bundled PDFsharp and supporting dependency binaries covered by the notices in THIRD_PARTY_NOTICES.md