UPDF is a PDF editor driven by AI Agents, featuring AI, reading, editing, annotating, cloud synchronization, conversion, encryption, cropping, splitting, document comparison, and more. UPDF offers a youthful and visually appealing interface to provide a pleasant and efficient reading and office experience.
### Features:
1. **Editing PDF:**
– Add or remove text, edit text attributes such as font, color, size, and alignment.
– Adjust text alignment to make the document look tidier.
– Crop, rotate, replace, extract, and delete images within the PDF.
– Drag and drop images to add or replace them.
– Manage watermarks, backgrounds, and headers/footers.
2. **AI Features:**
– Summarize single or multiple PDF documents.
– Translate PDF documents.
– Interpret, rewrite, or write PDF documents.
– Interact with UPDF AI.
– Interact with images for free-form questions and answers.
– Generate mind maps from document summaries.
– Search for documents and create bibliographic networks.
– Conduct deep research and literature reviews.
### New AI Agents Features:
– **PDF Copilot (AI Operation Assistant):** Edit PDFs using natural language, convert PDFs to Word, and compress files—no need to search through menus, just execute tasks immediately.
– **AI Semantic Search:** Understands and searches for documents based on context and meaning, with accuracy up to 95% and efficiency up to 5 times faster.
– **AI Bookmark Agent:** Automatically creates structured bookmarks and generates paragraph summaries, improving navigation efficiency by up to 92%.
– **AI Editing Tools:** Directly edit, adjust tone, and correct grammar within the PDF editor without switching applications.
– **AI Creative Generation:** Generate watermarks, stickers, backgrounds, and seals using prompts, with high-quality, 1024×1024 images and 20+ styles, completed in 10 seconds.
– **AI Page Management:** Automatically detect and correct blank pages or rotated pages with up to 98% accuracy.
3. **Annotating PDF:**
– Add annotations such as highlighting, underlining, and strikethrough to emphasize important content.
– Use graphics and text boxes to annotate PDFs.
– Add sticky notes for notes or approvals.
– Add various stamps and stickers for annotations and comments.
– Create your own signature quickly.
– View and delete all annotations with a single click.
4. **OCR (Optical Character Recognition) (Available only for the official download version):**
– Convert scanned PDFs into searchable and editable PDFs.
– Supports 38 languages for detection.
– Convert searchable and editable PDFs into image-only PDFs.
5. **Converting PDF:**
– Convert PDFs to Word, Excel, PowerPoint, Image, HTML, Text, CSV, XML, PDFIA, and more formats.
– Convert Word, Excel, PowerPoint, images, and CAJ files to PDF.
– Maintain the original document format after conversion.
6. **Cloud Synchronization:**
– Upload documents to UPDF Cloud for full-device synchronization between PC and mobile devices.
7. **Managing PDF Pages:**
– Rotate pages to adjust their orientation.
– Drag pages to reorder them.
– Extract or delete pages as needed.
– Add or replace pages quickly.
– Split a PDF document into multiple documents based on page numbers.
– Customize page size according to needs.
8. **Viewing and Locating PDF Documents:**
– Zoom in or out to view document content clearly.
– Add bookmarks to quickly locate specific pages.
– Open multiple PDF documents in the same window for easy access.
– Quickly search and locate text content.
– Rotate, delete, and print PDF pages using thumbnails.
– View PDF documents in slide show format.
9. **Protecting Documents:**
– Add document opening passwords to prevent unauthorized access.
– Set document function permissions to restrict printing, editing, copying, or encrypting PDFs.
– Compare two documents to highlight differences.
– Apply digital signatures to prevent file tampering.
– Use steganography (muddling) for sensitive information.
10. **Creating PDF:**
– Create blank pages.
– Create PDFs from selections, windows, or screen captures.
11. **Flattening PDF:**
– Quickly flatten PDFs by removing layers from the document.
12. **Batch Processing:**
– Batch conversion, merging, OCR, compression, printing, creation, watermarking, page headers and footers, Bates numbering, insertion, background, encryption, and deletion.
Version 2.5.2 Update Highlights:
– Support for接力 receiving documents.
– Support for right-click deletion of current pages.
– Support for naming and batch management of collected watermarks.
– Support for toggling left or right tabs.
– Fixed issues with multi-page thumbnail cropping synchronization after removing white borders.
– Support for manually adjusting the cropping box in remove white borders mode.
– Improved conversion functionality.
– Fixed some issues to enhance stability.
Software Screenshots:





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