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.
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) |
60.8MB |
| 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 | English | |
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
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.