Synapse PDF
Annotate, Summarize & Study
Only for Mac
Free · In‑App Purchases
Mac
Turn dense PDFs into mastered knowledge. Annotate, summarize, and track every study session—plus 19+ pro PDF tools and AI study aids, all on your Mac.
SynapsePDF is the all-in-one PDF workspace built for people who read to learn. Read, annotate, summarize, and truly master your documents—then track exactly how your studying is going. Everything stays fast, private, and beautifully organized on your Mac.
Whether you're a student, researcher, or professional, SynapsePDF turns passive reading into active understanding.
READ & FOCUS
• Clean, distraction-free reader with Light and Dark modes
• Visual page overview to navigate long documents instantly
• Focus Mode to stay locked in on what matters
• Glassmorphism toolbar that keeps every tool one click away
ANNOTATE & DRAW
• Highlighter, pen, shapes, text, and image tools
• Laser pointer for presenting and teaching
• Perfect geometry for clean diagrams
• Quick erase and natural, responsive writing
SUMMARIZE & REVISE
• Aggregate every highlight into a clean, page-by-page summary
• Organize insights by page or by color
• Export summaries to Markdown or flashcard-ready CSV
• Built for spaced repetition and faster revision
STUDY ANALYTICS
• Track time spent on every PDF and every page
• See your study consistency at a glance
• Understand your habits and stay accountable
• Log sessions and measure real progress
AI STUDY TOOLS
• Generate flashcards, quizzes, and mind maps from any document
• Get instant summaries, reports, and answers to your questions
• Choose from leading AI engines for every task
• Keep notes, sources, and AI outputs in one unified workspace
LINK IT — KNOWLEDGE MAPS
• Connect related ideas and build knowledge visually
• Group concepts into clean, organized collections
• Find any connection in seconds
19+ PROFESSIONAL PDF TOOLS
• Merge, split, reorder, rotate, and delete pages
• Compress, add page numbers, and edit metadata
• Lock, unlock, watermark, redact, and sign documents
• Convert PDF ⇄ PPT and JPG ⇄ PDF, extract images, and OCR scanned text
ORGANIZED LIBRARY
• Smart organization with favorites, recents, and collections
• Powerful search to find any PDF instantly
• Import files easily and keep everything tidy
CLOUD SYNC
• Keep your PDFs updated across devices in real time
• Secure, reliable, and ready whenever you are
PRIVATE BY DESIGN
Your documents stay yours. SynapsePDF is built to keep your files secure and your reading private.
One-time purchase. No subscriptions. Just a powerful, focused tool that grows with the way you learn.
Download SynapsePDF and start turning documents into knowledge today.
Terms of Use: https://synapsepdf.com/terms
Privacy Policy: https://synapsepdf.com/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Samer Mohammed, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Samer Mohammed
- Size
- 9.6 MB
- Category
- Productivity
- Compatibility
Requires macOS 26.2 or later.
- Mac
Requires macOS 26.2 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Annual Synapse PDF $9.99
- Lifetime Synapse PDF $34.99
- Copyright
- © SAMER APPS