Tenorshare PDNob Tech Specs & Changelog

PDNob delivers AI-powered PDF editor to edit, convert, annotate, merge, split, and protect PDFs, perform OCR with 99% accuracy.

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	Windows	Mac	iOS
Supported OS	Supports Windows 10 and higher (64 bit)	Supports macOS 10.15 - 26	iOS15.0-iOS26 or later
Package Size	184MB (OCR plugin: 1.80GB)	Arm version: 323MB (OCR plugin: 1.67GB) Intel version: 344MB (OCR plugin: 2.02GB)	77.9MB
Disk	2.5 GB	2.75 GB	/
RAM	1 GB	1 GB	/
OCR Language Supported	Arabic, Chinese Simplified, Chinese Traditional, Dutch, English, French, German, Indonesian, Italian, Japanese, Korean, Portuguese, Russian, Spanish, Thai, Turkish
File Conversion Formats	Convert other formats to PDFs: .xls, .xlsx, .ppt, .pptx, .doc, .docx, .jpg, .jpeg, .png, .tiff, .bmp; Convert from PDFs to other formats: .xls, .xlsx, .ppt, .pptx, .doc, .docx, .jpg, .jpeg, .png, .bmp, .tiff, .txt, .rtf, .epub, PDF/A		Convert other formats to PDFs:.xlsx, .pptx, .docx; Convert from PDFs to other formats: .xls, .xlsx, .ppt, .pptx, .doc, .docx, .jpg, .jpeg, .png, .bmp, .tiff, .txt, .rtf, .epub, PDF/A
Internet	Please keep your device connected to the Internet during the registration and activation of PDNob to receive live updates, product support, and more.
Software Language Supported	English, German, French, Japanese, Italian, Spanish, Portuguese, Russian, Dutch, Korean, Traditional Chinese, Arabic, Turkish and Thai
Team Plan	Team Member & User Permission Management(Manage team members and centrally assign, configure, and revoke user permissions.)

Note: The performance of PDNob is influenced by system hardware, resource availability, disk space, and other environmental factors. To achieve optimal performance, use a system that surpasses the minimum specifications.

Change Log

2026

August 31V2.1.1

PDNob for Win & Mac:

New Subscription Plan:

PDNob Team Plan: Introducing the new team plan for centralized team member and license management, with support for license assignment and revocation.

New Features:

PDNob Team Plan: Centralized management of team members and licenses.
Tiled Watermarks: Add repeating watermarks to enhance document protection and identification.
Extract Text from Images: Quickly recognize and extract text from images in PDFs.
File Drag and Drop: Drag and drop files directly onto PDF pages to quickly add content.
Cloud Sharing Links: Create sharing links for files stored in the cloud and easily share documents.

Improvements:

Added support for digital signatures with P12 certificates and precise object positioning using arrow keys.
Expanded PDF merging to support combining PDFs with non-PDF files.

2026

Aug 20 V1.4.1

PDNob iOS App:

Supports stickers, underlines, strikethroughs, and rectangle annotations.
Supports watermarks.
Supports 13 new languages.

2026

July 29 V2.1.0

PDNob for Win & Mac
New Features:

AI PDF Agents - Use natural language agents to run PDF tools instantly, including OCR, file conversion, and compression.
Full & Side-by-Side Translation - Translate entire documents quickly while preserving the original layout, with side-by-side bilingual translation for easy comparison.
Batch Tool Improvement - Improved batch tools with a more user-friendly workflow.

Improvements:

Enhanced performance and smoother interactions across the app.

Fixes:

Fixed several issues to improve stability and reliability.

2026

July 3 V1.3.0

PDNob iOS App:

Format Conversion: Convert between PDF and Office, or export to TXT, EPUB, RTF, and image formats.
OCR Support: Convert scanned PDFs into editable and searchable files.

2026

June 11 V2.0.2

PDNob for Win & Mac
New Features:

Smaller application window sizes – Better support for split-screen and multi-tasking workflows.
More AI model options – Added support for Qwen and Gemini.
New preference settings – Customize startup behavior and keyboard shortcuts.

Improvements:

Enhanced AI response formatting and overall chat experience.
Added bookmark search for quicker navigation.
Added notifications when opening PDF/A-compliant documents.

Fixes:

Fixed issues that could cause document corruption, missing text, or garbled content after editing and saving.
Fixed text corruption when copying and pasting content from OCR-processed documents.
Improved compatibility with Adobe PDF forms.

2026

May 27 V1.0.0

PDNob Online Initial Release:

Free online PDF tools: Convert, merge, compress, sign, and OCR (powered by Abbyy, supports 16+ languages).
Privacy-first design: Files auto-deleted within 2 hours, no account or sign-up required.
Cross-platform support: Works on Windows, Mac, iOS, and Web browsers.

2026

May 6 V1.2.0

PDNob iOS App:

Membership subscriptions are now available within the app.
Fixed several user experience issues and crashes.

2026

April 2 V2.0.0

PDNob 2.0 – Rebuilt, Faster & Smarter:

Brand New, Self-Developed PDFium Engine: Faster and more stable performance for large PDFs.
Dark Mode: Eye-friendly reading and editing experience.
AI Q & A: Upload images/screenshots, get contextual answers with page references, and enjoy faster response speed.
OCR Enhancements: Advanced configuration options for better recognition in complex documents.
Compression: Optimized PDF compression for better speed, precision and quality.
Interface & Interaction: Redesigned homepage, file list, editing tools, annotations, and menus for smoother workflow.

2026

February 6 V1.1.0

PDNob iOS App New Features:

Cloud Storage

2025

November 19 V1.0.0

PDNob iOS App:

Initial Release: Core features include PDF editing, annotation, and viewing.

November 6 V1.6.0

New Features:

Added the ability to create and edit PDF forms seamlessly.
Added a right-click option to convert local images to PDF.
Added email + verification code login option.

Enhancements:

Optimized eraser tool and annotation interactions; text highlights now move smoothly with the text in editing mode.
Enhanced AI assistant: added recommended questions and smoother Q&A interactions.
Improved layer management when editing text and images simultaneously.
Optimized certificate signature removal verification for smoother operation.
Added support for cropping, copying, cutting, and pasting images efficiently.

September 18 V1.5.6

Added support for macOS 26.
Introduced Mac screen recording with performance improvements.
Added TXT to PDF conversion.
Enabled multi-threaded document processing for faster performance.
AI result rendering now supports Markdown format.
Improved feedback system with document and video upload support.

June 20 V1.5.0

New Features: Added encryption and screenshot functionality (Windows only), and support for polyline shape annotations.
Enhancements: Multiple image import methods supported (drag & drop, clipboard paste), including transparent images.
Improved Workflow: Automatically converts and opens non-PDF files dragged into the app. Dragging images to the thumbnail area now auto-inserts them as PDF pages.
OCR Improvements: Reduced garbled text issues and enhanced usability with optimized interactions.
Editing Upgrades: Expanded editable object types to include images within Form Xobjects for more flexible editing.

April 7 V1.4.0

Expanded AI features: copywriting assist, content polishing, summarization, and explanations.
Added new print modes (poster, multi-page, booklet).
Extended batch tools with batch printing and batch creation.

February 26 V1.3.1

Integrated the DeepSeek-R1 model and supports manual switching between AI models.

January 16 V1.3.0

Added handwritten signatures to annotation tools.
Introduced certificate signatures (create & verify) for document security.
Added batch tools: conversion, OCR, compression, merging, watermarking, background/header/footer edits, and encryption.
Added AI-powered text selection translation.
Upgraded AI chat with regenerate response and like/dislike feedback.

2024

December 24 V1.2.0

Added pencil, eraser, and sticky notes for annotations.
Improved conversion: new supports blank pages, multi-page to long image, and image extraction.

UX Improvements: optimized performance for smoother workflows.

November 25 V1.1.0

Initial Release: Core features including PDF editing, conversion, OCR, annotation, and AI PDF tool.