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Stop rewriting manually. Let UPDF AI Agent generate content, polish your wording, expand ideas, or make text
more concise—delivering clear and professional PDFs faster than ever.
Languages Supported
Tone Consistency
Grammar Accuracy
App/Website Switching
UPDF can eliminate grammar mistakes, awkward phrasing, and unclear sentences in seconds. Whether you need to sound authoritative for a legal brief or casual for a friendly email our AI Agent acts as your dedicated editor.
Context-Aware Refinement
5 Preset Tones
Instant Style Transformation
Need to add depth—or remove unnecessary wording? UPDF AI Editor intelligently enriches content with additional details, descriptive modifiers, or streamlines sentences by removing redundancy and excess wording.
Precision Length Control
Logical Flow Preservation
Create new content or seamlessly extend existing text with preset prompts or custom commands. UPDF AI Agent keeps the same writing style, perspective, and tonewhile naturally extending the original logic—helping you expand ideas or reach conclusions quickly without breaking the flow of your document.
Customized Commands
26 Languages Supported
Style Consistency
UPDF lets you generate, refine, expand, and proofread text directly inside your document, giving you a seamless, professional editing experience that others simply cannot match.
Tone Shift
Customizable AI Prompt
Formatting Preservation
In-Place Replace/Insert
Multi-language Creation
Value & Efficiency
(5 Preset Voices)
(100% Layout Integrity)
(Seamless)
(26 Languages)
(All-in-one Licence)
(Limited preset options)
(Manual Copy/Paste)
(Major Languages only)
(Limited)
(Limited context)
(Manual Copy/Paste)
(Expensive)
Transform unclear text into polished writing without copy-pasting or external tools required.
Open your PDF in UPDF and switch to Comment Mode from the left toolbar. Select the sentence or paragraph you want to edit—the AI Edit mode will automatically appear on top, giving you instant access to all editing options.
Pick or type exactly how you want your text transformed:
Click Enter to instantly review the result. You have 4 choices to easily Replace the original, Copy to your clipboard, Expand further, or Retry. It’s seamless editing that puts you in the driver’s seat.
AI editing is ideal for professionals, students, researchers, marketers, and business teams who regularly work with long documents. It helps turn rough drafts into clear, polished writing much faster while keeping everything inside the same PDF workflow.
Transparent and flexible. We use a straightforward credit-based system: each AI task (such as rewriting, expanding, generating, or continuing text) consumes 1 AI credit. You can track your remaining balance at any time on our Pricing page to ensure your productivity stays uninterrupted.
Certainly. Our AI Editor supports over 26 languages. Whether you need to proofread, polish, or generate content in a foreign language, the AI maintains the same level of linguistic precision as it does in English.
Many important documents—contracts, reports, research papers...—are shared as PDFs. UPDF lets you improve the text exactly where it exists, saving time and preventing formatting issues. Plus, with its advanced OCR functionality, you can accurately scan and edit even image-based PDFs with ease.
Absolutely not! The AI preserves the core meaning and logical structure of your content. When expanding or condensing text, it focuses on improving clarity, adding useful details, or removing redundancy—without altering the key message.
One powerful AI. Purpose-built for your document workflow.
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