ThinkPDF: AI Chat, OCR & Edit

Contains adsIn-app purchases
Content rating
Everyone
100+
Downloads
Content rating
Everyone
In-App Purchases
Learn more
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Welcome to ThinkPDF, the ultimate AI-powered document workspace designed to revolutionize how you interact with your files. ThinkPDF isn't just an ordinary PDF reader—it is a comprehensive, advanced AI PDF editor, intelligent document scanner, and an all-in-one suite of PDF tools. Built with cutting-edge RAG (Retrieval-Augmented Generation) technology and powered by industry-leading AI models like Gemini and Groq, ThinkPDF is the smartest way to read, summarize, edit, scan, and manage your documents.

Whether you are a student looking for an AI homework helper, a researcher analyzing lengthy papers, or a professional filling and signing contracts, ThinkPDF brings desktop-level power straight to your Android device.

🤖 CHAT WITH PDF & AI SUMMARIZER
Why spend hours reading when you can just ask?
• Chat with any PDF: Upload your documents and ask PDF questions naturally. Our advanced RAG AI understands the context and gives you precise, instant answers.
• AI PDF Summarizer: Turn 100-page reports, legal contracts, or textbooks into bite-sized, easy-to-understand summaries in seconds.
• Smart Chat History: Your conversations are securely saved. Pick up your AI chat exactly where you left off.
• Read PDF Aloud: Use our high-quality Text-to-Speech (TTS) feature to listen to your documents hands-free while commuting or multitasking.

🎓 THE ULTIMATE STUDENT STUDY TOOL
Supercharge your learning and exam prep!
• AI Flashcards Maker: Automatically generate study flashcards directly from your course materials and lectures.
• PDF Quiz Generator: Instantly transform any textbook or study guide into an interactive multiple-choice quiz to test your knowledge.
• AI Homework Helper: Stuck on a complex topic? Ask the AI to explain concepts, solve problems, or provide background context from your uploaded files.

📝 PROFESSIONAL PDF EDITOR & FORM FILLER
Edit documents on the go without needing a computer.
• Edit PDF Text & Annotate: Highlight important sections, add comments, draw shapes, and leave sticky notes.
• Fill and Sign PDF Forms: Easily type into digital PDF forms, check boxes, and securely add your electronic signature to contracts and invoices.
• Edit PDF Metadata: Keep your files organized by editing titles, author names, and tags.

📸 SMART SCANNER APP
Turn your physical world into searchable digital text.
• Scan to PDF AI: Digitize receipts, whiteboard notes, ID cards, and paper documents into high-quality PDFs.
• Powerful OCR (Optical Character Recognition): Extract text from scanned images instantly. Copy, paste, and edit the extracted text with ease.
• Auto-Crop & Image Enhancer: Ensure every scan is perfectly aligned, brightened, and professional.

🛠️ THE COMPLETE OFFLINE PDF UTILITY TOOLKIT
Stop downloading 10 different apps! ThinkPDF includes a massive suite of powerful, offline-capable PDF utilities:
• Compress PDF File Size: Reduce the MB size of heavy documents for easy email sharing and fast uploads without losing visual quality.
• Merge & Combine PDFs: Join multiple documents, assignments, or reports into a single, organized file.
• Split & Extract Pages: Pull out specific pages from a large document and save them as a new file.
• Secure & Password Protect: Lock your sensitive documents with strong encryption to prevent unauthorized access. Unlock and remove passwords when needed.
• Organize Pages: Easily rotate, reorder, and delete pages with an intuitive drag-and-drop interface.


🔒 PRIVACY & SECURITY YOU CAN TRUST
Your privacy is our priority. Your documents and AI chats are processed securely. Add passwords to your most important files and manage them all from a secure, local environment.

Download ThinkPDF today and experience the future of document management. Stop just reading your PDFs—start chatting, summarizing, and mastering them!

📩 We love feedback!
Contact us anytime with suggestions to improve ThinkPDF at our email aithinkpdf@gmail.com
Updated on
May 9, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Messages, Files and docs and 3 others
This app may collect these data types
Financial info, Messages and 5 others
Data is encrypted in transit

What’s new

Premium Office(Excel, Word, PPT) to PDF tools added