UPDF

UPDF is a free PDF editor that lets users read, annotate, and modify PDF documents on desktop and mobile devices. It supports basic editing functions such as adding highlights, shapes, stickers, e‑signatures, and commenting, as well as more advanced operations like reordering, deleting, inserting, extracting, splitting, and rotating pages. Text, images, and links can be edited directly within a PDF, and annotations can be exported as a separate file.

The software includes a suite of AI‑driven tools powered by GPT‑5 and DeepSeek, offering features such as smart summarization, translation into multiple languages, semantic search, and the ability to chat with PDFs and embedded images. Over ten specialized AI agents automate tasks for research, finance, legal analysis, and other domains, providing automated bookmarking and data extraction.

UPDF synchronizes work between desktop and mobile platforms, allowing users to access and edit PDFs anywhere. It also provides options for converting PDFs, OCR processing, organizing files, protecting documents, and printing, all within a single integrated interface.