Best PDF Pen Apps

245+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated October 2026

Every iPhone needs a few good pdf pen apps. We benchmark 245+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top PDF Pen Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1PDF Expert: Editor & ReaderPDF Expert: Editor & ReaderFree4.7ā˜… (216K)NoYesOct 2026
2Acrobat Reader: PDF EditorAcrobat Reader: PDF EditorFree4.6ā˜… (654K)NoYesOct 2026
3Foxit PDF EditorFoxit PDF EditorFree4.5ā˜… (4.8K)NoYesOct 2026
4PDFelement: PDF Editor, ViewerPDFelement: PDF Editor, ViewerFree4.6ā˜… (7.6K)YesYesOct 2026
5AI PDF Editor: Sign, HighlightAI PDF Editor: Sign, HighlightFree5.0ā˜… (2)NoYesSep 2026
6PDF ProX: PDF Reader & EditorPDF ProX: PDF Reader & EditorFree—YesYesSep 2026
7PDF Converter&Editor - PDF ZenPDF Converter&Editor - PDF ZenFree4.7ā˜… (109)YesNoSep 2026
8FreePDF: PDF Converter & ScanFreePDF: PDF Converter & ScanFree—YesYesSep 2026

Top Picks for PDF Pen

4.7😐(216K ratings)
FreeIn-App Purchases
#83in Productivity
PDF Expert: Editor & Reader screenshot 1
PDF Expert: Editor & Reader screenshot 2
PDF Expert: Editor & Reader screenshot 3
PDF Expert: Editor & Reader screenshot 4
PDF Expert: Editor & Reader screenshot 5
PDF Expert: Editor & Reader screenshot 6

This app allows you to edit, annotate, fill out forms, and convert PDF documents. It offers AI-powered summarization and analysis, along with tools to merge, sign, and protect your files. Work seamlessly across Apple devices with a user-friendly interface.

What We Love

  • šŸš€ Fast and responsive
  • šŸ‘ Intuitive and user-friendly interface
  • šŸ’” Powerful annotation and editing tools
  • šŸ”’ Seamless cloud integration
  • šŸ“š Excellent for reading and organizing PDFs

Room to Improve

  • šŸ› Frequent crashes and stability issues
  • šŸ”’ Subscription model for advanced features
  • šŸ”’ Inconsistent pricing and feature changes
  • šŸ” Cluttered and confusing UI in latest update
  • šŸ” Reduced customization options for annotations
Acrobat Reader: PDF Editor#2

Acrobat Reader: PDF Editor by Adobe Inc.

Documents Converter & Signer
Strong Contender
šŸ’¼ Business
4.6šŸ˜ž(654K ratings)
FreeIn-App Purchases
#2in Business
Acrobat Reader: PDF Editor screenshot 1
Acrobat Reader: PDF Editor screenshot 2
Acrobat Reader: PDF Editor screenshot 3
Acrobat Reader: PDF Editor screenshot 4
Acrobat Reader: PDF Editor screenshot 5
Acrobat Reader: PDF Editor screenshot 6

This app is a powerful PDF tool for viewing, editing, annotating, and signing documents. It offers AI-powered features for summarizing and interacting with PDFs, along with robust conversion and security options. Collaborate on files and access your documents from anywhere.

What We Love

  • šŸš€ Fast and efficient
  • šŸ”’ Secure document storage
  • šŸ‘ Convenient for reading and annotating PDFs
  • šŸ‘ Useful for students and professionals

Room to Improve

  • šŸ› Buggy and unreliable
  • šŸ”’ Overly intrusive login requirements
  • šŸ’° Expensive subscription model
  • šŸ‘Ž Counterintuitive user interface changes
  • šŸ” Poor search and organization features
Foxit PDF Editor#3

Foxit PDF Editor by FOXIT SOFTWARE INCORPORATED

View, Edit, Convert, and Sign
Worth Considering
šŸ“Š Productivity
4.5😊(4.8K ratings)
FreeIn-App Purchases
Foxit PDF Editor screenshot 1
Foxit PDF Editor screenshot 2
Foxit PDF Editor screenshot 3
Foxit PDF Editor screenshot 4
Foxit PDF Editor screenshot 5
Foxit PDF Editor screenshot 6

This mobile app offers comprehensive PDF management, allowing users to view, edit, annotate, and convert PDF files on the go. It includes AI-powered features for summarization, translation, and text enhancement, alongside robust tools for creating, signing, and protecting documents.

What We Love

  • šŸš€ Excellent PDF reader
  • šŸ‘ User-friendly interface
  • šŸ”“ Robust annotation tools
  • šŸ’” Convenient cloud integration
  • šŸ”Š Helpful text-to-speech feature
  • šŸ—‚ļø Organized document management

Room to Improve

  • šŸ› Crashes and stability issues
  • šŸ”’ Subscription required for full functionality
  • šŸ’° Expensive subscription cost
  • šŸ–Œļø Poor Apple Pencil support
  • šŸ“‚ Unreliable cloud sync
  • šŸ” Lacking search capabilities

More PDF Pen apps to explore

FAQ about PDF Pen

What are the best pdf pen apps for iPhone?
PDF Expert: Editor & Reader tops our pdf pen apps ranking as of October 2026, with a 4.7-star average from 216K App Store ratings, and it's free to download.
Yes — 20 of the top pdf pen apps we rank are free to download, including PDF Expert: Editor & Reader and Acrobat Reader: PDF Editor.
PDF Expert: Editor & Reader has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 245+ pdf pen apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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