Aspose.PDF FOSS for .NET is a free, MIT-licensed .NET library for reading, creating, and manipulating PDF documents. Released under a permissive open-source license, it removes the traditional barrier to enterprise-grade PDF capabilities — every feature in the library is available without purchasing a commercial license. What Is Aspose.PDF FOSS for .NET? The library targets .NET 8 and later. It is published to NuGet under the package ID Aspose.Pdf.Foss and can be added to any .NET 8+ project with a single command: ...

Core PDF document management covers the operations that appear in nearly every PDF workflow: opening or creating a document, accessing pages and their content, reading and writing annotations, extracting text, and working with interactive actions. Aspose.PDF FOSS for .NET provides a .NET 8+ API that handles all of these tasks through a consistent object model centered on the Document and Page types. Document Lifecycle: Create, Open, Save Every workflow starts with either creating a new document or loading an existing one. Document.Create() returns a new, empty Document instance. Document.Open(data) accepts a byte[] or Stream and parses the PDF structure: ...

A closer look at the core API surface of Aspose.PSD FOSS for .NET — the Image/PsdImage class hierarchy, the geometry value types, resource blocks, and the exception types raised on load/save errors.

A closer look at the core API surface of Aspose.PSD FOSS for Python — the Image/PsdImage relationship, the geometry value types, resource blocks, and the exception types raised on load/save errors.

Aspose.PDF FOSS for Java 26.9.0 adds two-way PDF<->Excel and PDF<->Markdown conversion via ExcelSaveOptions, MarkdownSaveOptions, ExcelLoadOptions, and MarkdownLoadOptions — all MIT-licensed and dependency-free.

A deep dive into layer metadata in Aspose.PSD FOSS for .NET — the Layer class’s full property set, blend modes, layer mask flags, and the channel/mask/blending-range metadata classes used to describe a PSD layer’s structure.

A deep dive into layer metadata in Aspose.PSD FOSS for Python — the Layer class’s full property set, blend modes, layer mask flags, and the channel/mask/blending-range metadata classes used to describe a PSD layer’s structure.

A free, MIT-licensed, zero-dependency .NET library for loading, inspecting, and saving PSD and PSB documents without rendering pixel data — covering document headers, layer metadata, and supported layer-property edits through the PsdImage and Layer classes.

A free, MIT-licensed, pure-Python library for loading, inspecting, and saving PSD and PSB documents without rendering pixel data — covering document headers, layer metadata, and supported layer-property edits through the PsdImage and Layer classes.

Five feature areas of Aspose.PDF FOSS for Java with working code: text-markup annotations, free-text callouts, document-level actions, a size guard for stream decoding, and diagnostic logging.