BigPaper is a versatile note-taking application available for iPhone and iPad. It offers an infinite canvas where you can import and expand PDFs and various formats, allowing you to take notes freely without constraints. With features like multi-format document import, handwriting, mind mapping, tables, scanned documents, and more, BigPaper is a comprehensive tool for annotating PDFs, creating handbooks, and designing mind maps. It also supports iCloud data sync for seamless editing across devices.

BigPaper stands out with its innovative functions like an infinite canvas for freeform elements, mind mapping mode for connecting ideas, customizable text input, brush tools for handwritten notes and drawings, table creation, and efficient file management with folders. Additionally, it offers features like importing/exporting various document formats, reading mode, screenshot mode, stickers, paper templates, iCloud sync, document scanning with OCR text recognition, and advanced search capabilities.