Smart OCR & TTS Tool User Guide

Learn how to extract text from documents, convert it to speech, translate, summarize, and edit with AI assistance using our powerful all-in-one tool.

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Quick Start

Get started with Smart OCR & TTS Tool in just a few simple steps:

1

Upload Your Document

Drag and drop your PDF, image, DOCX, or text file onto the upload area or click to browse your files.

2

Extract Text with OCR

Use our AI-powered OCR to extract text from your documents with up to 99% accuracy.

3

Process with AI Tools

Clean, punctuate, translate, summarize, or extract keywords from your text using AI.

4

Listen or Export

Listen to your text with premium TTS voices or export in various formats including searchable PDF.

Tool Features

OCR & Text Extraction
Text-to-Speech
AI Text Processing
Document Editor
AI Assistant

Advanced OCR & Text Extraction

Extract text from PDFs, images, and documents with industry-leading accuracy using both traditional OCR and AI vision.

Multi-Format Support PRO

Process PDFs, images (JPG, PNG, WebP), DOCX, TXT, and MD files with a single tool.

AI Vision OCR AI

Get up to 99% accuracy with our advanced AI-powered text recognition for complex documents.

Multi-Language Support

Extract text in 100+ languages including English, Hindi, Spanish, French, and many more.

Selective Area OCR

Draw a selection area to extract text from specific parts of documents or images.

Batch Processing

Process multiple pages or documents in sequence with our efficient batch system.

Format Preservation

Maintain original formatting, line breaks, and structure from your source documents.

Step-by-Step Guide for OCR

1

Upload Your Document

Drag and drop your file onto the upload area or click "Browse Files". Supported formats include PDF, JPG, PNG, DOCX, TXT, and MD.

Upload area
2

Select Document Language

Choose the language of your document from the dropdown for optimal OCR accuracy. You can select multiple languages like "English + Hindi" for bilingual documents.

Language selection
3

Preview & Select Area (Optional)

For images and PDFs, you'll see a preview where you can:

  • Select specific pages (for PDFs)
  • Draw a selection area to extract text from specific parts
  • Use "Clear Selection" to reset your selection
Preview and selection
4

Choose OCR Method

Select your preferred OCR method:

  • OCR (90% accuracy): Faster processing with good accuracy
  • OCR (99% Accuracy): AI-powered processing for maximum accuracy
OCR method selection
5

Review Extracted Text

The extracted text appears in the Text Input area where you can further process it with AI tools or format it for TTS.

Extracted text

Advanced Text-to-Speech System

Convert text into high-quality, human-like speech using a modern 4-layer voice engine. From instant browser playback to premium multilingual voices and zero-shot voice cloning, the system adapts to both quick listening and professional audio creation workflows.

4-Layer Voice Engine

Unified system combining instant playback, premium voices, expressive synthesis, and zero-shot cloning for flexible performance across all use cases.

Premium Multilingual Voices PRO

Access 50+ natural voices across multiple languages with 20,000 free characters/day and unlimited premium generation for high-quality narration.

Zero-Shot Voice Cloning

Generate custom voices from 5–20s audio samples or use built-in models. Includes 10,000 characters/day for cloning with identity-level consistency.

Expression Control

Add human-like reactions using tags like [laugh], [sigh], [cough] to enhance realism and storytelling depth.

Streaming + Export

Instant MP3 streaming for fast playback or WAV export for high-quality production-ready audio downloads.

Playback & Control

Real-time word highlighting, intuitive playback controls, and fine-tuned speed and pitch adjustments for precise listening.

Step-by-Step Guide for TTS

1

Prepare Your Text

Ensure your text is ready in the "Formatted Text" area:

  • Upload documents and extract text using OCR
  • Paste or type text directly and click "Format To Hear"
  • Optionally enhance text using AI tools for better output
Text preparation
2

Select Voice Layer

Choose the appropriate generation mode based on your need:

  • Instant: Browser-based quick playback (free & unlimited)
  • Premium: High-quality multilingual voices (20K free daily)
  • Expressive: Emotion-aware voice output with control tags
  • Zero-Shot: Clone voice from short audio sample (10K/day)
TTS engine selection
3

Configure Voice & Input

Customize voice behavior and input method:

  • Select language and voice (Premium & Expressive)
  • Upload audio or record (5–20s) for Zero-Shot cloning
  • Use built-in voices if no reference audio is provided
  • Adjust speed, pitch, and delivery style
Voice settings
4

Generate & Control Playback

Interact with generated audio in real-time:

  • Play / Pause / Resume / Stop with responsive controls
  • Follow along using real-time word highlighting
  • Use keyboard shortcuts for faster interaction
Playback controls
5

Export Audio

Download your generated output based on your needs:

  • MP3: Fast streaming and lightweight usage
  • WAV: High-quality output for editing and production
Audio download

Pro Tips for Better Results

  • Use expression tags like [laugh] or [sigh] for more natural delivery
  • Use Zero-Shot cloning for personalized or brand-specific voiceovers
  • Choose WAV format when working with video editing or DAWs
  • Premium voices provide better consistency for long-form content
  • Use Instant mode for quick previews before generating final audio

AI-Powered Text Processing

Enhance, translate, summarize, and extract insights from your text with advanced AI capabilities.

Text Cleaning AI

Automatically fix line breaks, hyphenation issues, and formatting problems from OCR.

Smart Punctuation

Add appropriate punctuation to unformatted text while preserving original meaning.

Grammar Correction

Fix grammatical errors, spelling mistakes, and improve writing quality.

Translation

Translate text between 50+ languages with context-aware accuracy.

Text Summarization

Generate concise summaries of long documents while preserving key information.

Keyword Extraction

Automatically identify and extract important keywords and phrases from text.

Step-by-Step Guide for AI Tools

1

Prepare Your Text

Ensure your text is in the Text Input area. You can:

  • Upload a document and extract text with OCR
  • Type or paste text directly
  • Use speech-to-text to dictate text
Text preparation for AI
2

Access AI Tools

Click the "AI Tools" button to reveal the dropdown menu with all available AI functions.

AI Tools dropdown
3

Select AI Function

Choose from:

  • Punctuate AI: Add proper punctuation to unformatted text
  • Clean: Fix formatting issues from OCR
  • Grammar Fix: Correct grammar and spelling errors
  • Summarize: Create a concise summary
  • Keywords: Extract important keywords and phrases
AI function options
4

Review & Apply Changes

For some AI functions like Grammar Fix, you'll see a comparison view where you can:

  • Review the suggested changes
  • Accept all changes or reject them
  • Manually edit the text before applying
AI review interface
5

Use Translated/Summarized Text

After translation or summarization, the results appear in dedicated panels where you can:

  • Copy the results to clipboard
  • Use them for further processing
  • Export them separately
AI results panels

Pro Tips for AI Tools

  • Use "Clean" first on OCR-extracted text to fix formatting issues before other AI processing
  • For long documents, use "Summarize" to get a quick overview before detailed reading
  • Use "Keywords" to quickly identify main topics in documents
  • Select specific text in the output area and use the context menu for targeted AI actions

Rich Document Editor

Compose, edit, and format documents with our rich text editor and export to searchable PDF.

Rich Text Editing

Format text with bold, italics, lists, headings, and more using our Quill-based editor.

Import Multiple Formats

Import DOCX, TXT, MD files, or extract text from PDFs/images directly into the editor.

Export as PDF

Export your documents as searchable, formatted PDF files with preserved formatting.

Undo/Redo History

Full editing history with unlimited undo/redo capabilities.

Document Statistics

Track word count, character count, and reading time as you edit.

Auto-Save

Your work is automatically saved in browser storage to prevent data loss.

Step-by-Step Guide for Document Editor

1

Access the Document Editor

Scroll to the Document Editor section at the bottom of the application.

Document editor section
2

Import Content or Activate Editor

You have two options:

  • Upload a file (DOCX, TXT, MD, PDF, or image) to import content
  • Click "Activate Editor" to start with a blank document
Activate editor
3

Edit with Rich Text Controls

Once the editor is active, use the toolbar to:

  • Format text (bold, italic, underline)
  • Create headings and lists
  • Add links and quotes
  • Change text alignment
Editor toolbar
4

Use Editing Controls

Utilize the editing buttons:

  • Save: Save your document
  • Undo/Redo: Navigate through editing history
  • Clear: Start with a fresh document
Editor controls
5

Export as PDF

Click "Export as PDF" to generate a searchable PDF document with your formatted content.

Export as PDF

Pro Tips for Document Editor

  • Use keyboard shortcuts: Ctrl+Z for undo, Ctrl+Y for redo
  • Import OCR-extracted text from the main output area by copying and pasting
  • Use headings and lists to create well-structured documents
  • Export as PDF to create professional, shareable documents

AI Assistant

Get help, ask questions, and interact with your documents using our AI Assistant powered by advanced language models.

Context-Aware Responses

The AI understands your current document content when context is enabled.

Document Analysis

Ask questions about your uploaded documents and get intelligent answers.

Multi-Turn Conversations

Have natural conversations with follow-up questions and clarifications.

Export Chat History

Save your conversations for future reference or documentation.

Smart Suggestions

Get relevant follow-up questions and topic suggestions based on your conversation.

Multi-Purpose Assistance

Get help with writing, research, analysis, coding, and more.

Step-by-Step Guide for AI Assistant

1

Access the AI Assistant

Scroll to the "Smart OCR & TTS AI Assistant" section in the application.

AI Assistant section
2

Enable Context (Optional)

Toggle "Use output text as context" to allow the AI to reference your current document.

Context toggle
3

Ask Your Question

Type your question or request in the chat input area. You can ask about:

  • Your uploaded document content
  • Help with using the tool features
  • Writing assistance or ideas
  • General knowledge questions
Chat input
4

Send & Receive Response

Click "Send" or press Enter to send your message. The AI will generate a response that appears in the chat history.

Chat response
5

Continue Conversation

Ask follow-up questions or request clarifications. The AI maintains context throughout your conversation.

Chat conversation

Pro Tips for AI Assistant

  • Use Shift+Enter for new lines in your message
  • Enable context when asking about your specific document content
  • Be specific in your questions for more accurate responses
  • Export chat history to save important conversations
  • Use the AI Assistant to get help with using other features of the tool

Frequently Asked Questions

What file formats does the OCR support?

The OCR feature supports PDFs, images (JPG, PNG, WebP), DOCX documents, and text files (TXT, MD). For best OCR results with images, use high-resolution images with clear text.

How accurate is the OCR?

We offer two OCR options:

  • Standard OCR: Approximately 90% accuracy, faster processing
  • AI Vision OCR: Up to 99% accuracy, uses advanced AI for complex documents

Accuracy depends on document quality, text clarity, and language complexity.

What's the difference between Standard, Premium, Expressive, and Zero-Shot TTS?

Our platform provides a multi-layer TTS system, each designed for a specific need:

1. Standard TTS (Instant / Browser-based):

  • Uses built-in browser voices (quality varies)
  • Unlimited usage and completely free
  • Instant playback with minimal delay
  • No audio download support
  • Voice availability depends on browser and OS

2. Premium TTS:

  • High-quality, natural-sounding multilingual voices
  • 20,000 characters per day included
  • Consistent output across all browsers and devices
  • Supports audio download (MP3 / WAV)

3. Expressive TTS (Emotion Layer):

  • Add human-like expressions using tags like [laugh], [sigh], [cough]
  • Enhances realism for storytelling, videos, and narration
  • Works on top of Premium voices for better emotional delivery

4. Zero-Shot Voice Cloning:

  • Clone a voice using a short 5–20 second audio sample
  • Supports upload or direct microphone recording
  • 10,000 characters per day for cloned voice generation
  • Ideal for personalized, identity-level voice output

In summary: Standard = speed, Premium = quality, Expressive = emotion, Zero-Shot = custom voice identity.

Can I fully customize how the voice sounds?

Yes — you get detailed control across all TTS layers:

For Premium & Expressive TTS:

  • Voice Selection: Multiple voices per language
  • Speech Rate: Adjustable from 0.5x to 2.0x
  • Quick Presets: 0.75x, 1.0x, 1.25x options
  • Expression Tags: Use [laugh], [sigh], [cough], etc.
  • Audio Download: Export in MP3 and WAV formats

For Standard (Instant) TTS:

  • Voice Selection: Based on browser-supported voices
  • Speech Rate: Adjustable from 0.5x to 2.0x
  • Pitch Control: Adjust from 0 (low) to 2 (high)
  • Quick Presets: Same speed controls as Premium

Advanced Control: Use Zero-Shot Voice Cloning by uploading or recording a 5–20 second sample to define voice identity.

Pro Tip: Best results come from balanced speed + subtle expressions rather than extreme settings.

Is the Smart OCR & TTS tool free to use?

Yes — the platform is free with generous limits:

  • Unlimited Instant (Standard) TTS
  • 20,000 characters/day for Premium voices
  • 10,000 characters/day for Zero-Shot voice cloning
  • Unlimited OCR processing (text extraction from images/docs & 40+ file types)
  • Audio export support (MP3 & WAV)
  • Full access to AI tools & document editing features
  • No registration required

Note: Premium and Zero-Shot limits ensure fair usage while keeping the platform accessible to everyone.

What's the maximum file size I can upload?

Recommended file sizes for optimal performance:

  • PDFs: Up to 50MB or ~100 pages
  • Images: Up to 10MB each
  • DOCX files: Up to 20MB
  • Text files: Virtually unlimited

Note: Very large files may take longer to process and could impact browser performance. For best results, we recommend:

  • Split large PDFs into smaller sections
  • Optimize images before uploading
  • Use high-speed internet connection
  • Close other browser tabs during processing
How many languages does the translation support?

The translation feature supports over 50 languages including popular languages like English, Spanish, French, German, Chinese, Japanese, and Korean, as well as many Indian languages like Hindi, Bengali, Tamil, Telugu, and more.

Is there a limit to how much text I can process?

For most features, there are no hard limits. However:

  • Premium TTS is limited to 20,000 characters per day
  • Very large documents may take longer to process
  • Browser memory may limit extremely large files

For optimal performance, we recommend processing documents under 100 pages at a time.

Is my data secure and private?

Yes, we take your privacy seriously:

  • Files are processed in your browser whenever possible
  • No documents or extracted text are stored on our servers
  • AI processing uses secure API connections
  • We don't use your data for training models

For more details, please see our Privacy Policy.

What browsers are supported?

The tool works best with modern browsers including:

  • Chrome 80+ (recommended)
  • Firefox 75+
  • Safari 13+
  • Edge 80+

Some features like Standard TTS may have limited voice options in certain browsers.

Is there a way to get more than 20,000 characters for Premium or Zero-Shot TTS?

Currently, the daily limits are fixed to ensure fair and high-quality usage:

  • Premium TTS: 20,000 characters per day
  • Zero-Shot Voice Cloning: 10,000 characters per day

Why this is powerful: Many platforms limit voice cloning to around 10,000 characters per month, while here you get the same capacity every single day, enabling significantly higher creative output.

How to maximize your usage:

  • Use Standard TTS for casual or less critical content (unlimited & free)
  • Reserve Premium TTS for high-quality narration and final outputs
  • Use Zero-Shot selectively for personalized or branded voice content
  • Split long documents across multiple days if needed
  • Download audio to reuse without regenerating
  • Check back daily — limits reset every 24 hours

20,000 characters (Premium) ≈

  • 3,000–3,500 words
  • 10–15 minutes of spoken audio
  • 6–8 standard articles or blog posts

10,000 characters (Zero-Shot) ≈

  • 1,500–1,800 words
  • 5–8 minutes of personalized voice audio
  • Ideal for custom narrations, branding, or voice experiments

We're continuously improving and may introduce expanded limits and advanced plans in the future.

Can I use the tool for legal document processing?

Yes, the tool is excellent for legal document processing, but with important considerations:

Benefits for Legal Work:

  • Document Review: Quickly extract text from contracts, briefs, and case files
  • Accessibility: Convert legal documents to audio for review
  • Research: Summarize case law and legal opinions
  • Translation: Translate legal documents (with professional review)
  • Keyword Extraction: Identify key terms and clauses quickly

Important Legal Considerations:

  • Confidentiality: The tool processes documents in your browser, but avoid uploading highly sensitive confidential information
  • Accuracy Verification: Always verify OCR results for critical legal documents
  • Professional Responsibility: Final legal work should be reviewed by qualified professionals
  • Ethical Use: Ensure compliance with your jurisdiction's rules of professional conduct

The tool is designed for efficiency and productivity, but critical legal decisions should always involve human professional judgment.

Can I use this tool on mobile devices?

Yes! The Smart OCR & TTS Tool is fully responsive and works on mobile devices. However:

  • Some features like file upload may work differently on mobile browsers
  • Processing large files may be slower on mobile devices
  • The interface is optimized for touch interactions

For the best experience, we recommend using the tool on a device with a larger screen for document work.

Tips & Best Practices

Optimize OCR Results

Use high-quality images with clear text, select the correct document language, and use AI Vision OCR for complex layouts.

Improve TTS Quality

Clean and format text before TTS, use Premium voices for important content, and adjust rate for optimal listening.

Workflow Efficiency

Use the guided tour to learn features, save frequently used settings, and utilize keyboard shortcuts for common actions.

Document Organization

Use the Document Editor to organize extracted content, add headings, and export as searchable PDFs for archiving.

Voice Cloning Best Practices

Use .wav format for best audio quality when uploading samples. Ensure recordings are clear, 5–20 seconds long, and free from background noise for accurate voice cloning.

Smart Voice Selection

Use Zero-Shot Voice Cloning for highly professional or personalized content. For everyday high-quality narration, prefer Premium TTS for faster and consistent results.

Keyboard Shortcuts

Play/Pause TTS

Space

Undo

Ctrl+Z

Redo

Ctrl+Y

Copy Text

Ctrl+C

New Line in Chat

Shift+Enter

Send Chat Message

Enter

Troubleshooting

OCR Not Working

Check file format, ensure text is clear and legible, try AI Vision OCR for complex documents, and verify language settings.

TTS Not Playing

Check browser audio settings, ensure text is in the output area, try different voices, and verify Premium TTS character limit.

Slow Performance

Close other browser tabs, process smaller documents, use Standard OCR for faster results, and check internet connection.

Feature Not Available

Update your browser, check browser compatibility, ensure JavaScript is enabled, and try refreshing the page.

If you continue to experience issues, please use the Guided Tour (question mark icon) or contact our support team.