PdfFileEditor, ContentsResizeParameters, and PdfPageEditor provide the core PDF document manipulation capabilities in Aspose.PDF FOSS for Java — all MIT-licensed and dependency-free.

The facades layer in Aspose.PDF FOSS for Java provides lightweight, task-focused APIs for annotation management, bookmark editing, document security, stamping, and content extraction — all without requiring direct manipulation of the PDF object model.

Aspose.PDF FOSS for Go provides a Go-native API for PDF document creation, editing, splitting, merging, encryption, AcroForm filling, table layout, bookmarks, and annotations — MIT licensed with no native dependencies.

Covers the Document, Page, PageRange, and DocumentInfo API in Aspose.PDF FOSS for Go — open, create, save, split, merge, extract page ranges, and edit Info dictionary metadata without native dependencies.

Learn how to manage spreadsheets in Java with Aspose.Cells FOSS: create blank workbooks, load existing .xlsx files, read and write cell values, set formulas, and save results, all with pure-Java code and no Office dependency.

Aspose.Cells FOSS for TypeScript is a free, MIT-licensed library for creating, reading, and exporting Excel spreadsheets from TypeScript and Node.js.

Explore spreadsheet management features including styling, validation, charts, shapes, and protection in Aspose.Cells FOSS for TypeScript.

A guided tour of Aspose.Cells FOSS for Java features: workbook and worksheet management, typed cell values and formulas, styling, validation, AutoFilter, and page setup.

Deep dive into Aspose.Cells FOSS for Java’s core cell API: storing typed values, inspecting CellValueType, setting formulas, and reading string representations.

Aspose.Cells FOSS for Java is a free, open-source Java 17 library that lets you create, load, modify, and save Excel .xlsx workbooks with no Office installation needed.