oPDF
Read, Annotate & Convert PDFs
Only for Mac
Free · In‑App Purchases
Mac
oPDF is a minimal, high-performance PDF reader built for macOS. It brings reading, annotation, organization, OCR, and format conversion into one calm workspace, keeping the document itself in focus.
FOCUSED READING
- Open PDFs by dragging them in, then quickly return to recent files
- Work across multiple tabs with full-text search, printing, and support for password-protected PDFs
- Zoom, fit to page or width, and rotate pages
- Switch between single- or two-page layouts and vertical or horizontal scrolling
POWERFUL ANNOTATION
- Highlight, underline, strike through, and draw in multiple colors
- Add comments, notes, bookmarks, and signatures
- Undo, redo, and redact sensitive content
- Write annotations back to the original PDF with an automatic backup, or save an annotated copy
SMART ORGANIZATION
- Keep thumbnails, the original outline, bookmarks, notes, and search results close at hand
- Recognize document headings on-device and generate a clear hierarchical outline
- Jump directly to important sections in papers, reports, and long documents
FORMAT CONVERSION
- Convert and export PDFs to Markdown or Word
- Keep editing, organizing, quoting, and reusing content
- Use local OCR for scanned and image-based PDFs
PRIVACY FIRST
Core recognition and processing happen on your Mac. Documents do not need to be uploaded to the cloud for OCR.
oPDF is made for papers, reports, contracts, textbooks, manuals, and any PDF that deserves focused attention. Open the document, mark what matters, understand its structure, and move the content forward.
oPDF requires a one-time in-app purchase ("oPDF Lifetime") to unlock. Every feature listed below and shown in the screenshots is part of that purchase. There is no subscription and no recurring charge — buy once, keep it forever, including all future updates.
Included with the one-time purchase:
• Full PDF reading — tabs, thumbnails, bookmarks, outline, search
• Annotation — highlight, underline, notes, stamps, signatures, redaction
• Form filling
• On-device OCR — text recognition runs locally, nothing is uploaded
• Export and print
• Free updates, forever
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Added a Bookshelf to organize your favorite PDFs and make them easier to find and revisit.
The developer, 博超 贾, 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
- 博超 贾
- Size
- 22.4 MB
- Category
- Productivity
- Compatibility
Requires macOS 13.3 or later and a Mac with Apple M1 chip or later.
- Mac
Requires macOS 13.3 or later and a Mac with Apple M1 chip or later.
- Mac
- Languages
- English and Simplified Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Lifetime $9.99
- Copyright
- © 2026 EffishAI.