AI PDF Editor & Reader. Smarter editing, instant summaries, accurate translations, and fast PDF-to-Office conversion—all in one secure, lightning-fast app.
AI-powered PDF toolkit built for speed, security, and clarity. Edit, read, convert, and collaborate—without friction.
What you can do
• Edit PDFs: Modify text, images, and layout with precision.
• Read smarter: AI summaries, highlights, bookmarks, day/night/Sepia.
• Annotate & collaborate: Highlight, underline, notes, sketches, share.
• Fill & sign: Complete interactive forms and e‑sign on the go.
• Convert fast: PDF ⇄ Word/Excel/PPT/Images/TXT with high fidelity.
• Scan & organize: Search, manage, and work offline securely.
Why it’s better
• Lightning-fast viewer for large PDFs.
• Privacy-first: local processing and strong encryption.
• Professional output, zero watermarks for subscribers.
• Continuous updates with new AI capabilities.
VIP (auto‑renewable subscriptions)
• Monthly or yearly plans available.
• Unlock premium tools: advanced editing, full‑text search, batch processing, high‑quality exports, and more.
Policies
• Privacy: https://sophoninc.com/privacy.html
• Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
• Terms of Service: https://sophoninc.com/terms.html
Contact
• Email: feedback@sophoninc.com
Hard to find a pdf editor that will actually allow you to edit the text. I appreciated this one, got the job done
So good
MelTheBell1201
Easy and quick
Looks good in the description.
NinerFan15
After reading the description and everything this app claims to have to offer, I am guessing that's the reason it's free?You cannot change the background.You cannot edit any document.The only feature you can do using this app is uploading your files and renaming them. That is too bad too. I was looking forward to a better alternative than WPS, Word, and Docs. I guess I will keep searching. Thanks anyways.
Developer Response
Hi NinerFan15, we're sorry to hear about your experience. 😔 We are constantly working to improve our PDF editing tools. Could you please share more details or screenshots at feedback@sophoninc.com? We'd love to fix this for you ASAP.
Amazing app!!
Rob Dick
Easy to use!!and navigate.
• Faster, more reliable PDF editing on all devices.
• Smarter AI Assistants for homework and multilingual translations.
• Higher‑fidelity PDF ⇄ Word/TXT conversions.
• Many fixes and performance improvements.
Version 2.5.4
The developer, Yang Yang, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Contact Info
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Yang Yang
Size
174.9 MB
Category
Productivity
Compatibility
Requires iOS 15.0 or later.
iPhone Requires iOS 15.0 or later.
iPod touch Requires iOS 15.0 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
