Best PDF Annotate Apps

245+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated October 2026

The best pdf annotate apps on iPhone average 4.6★ across 245+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.

Compare top PDF Annotate Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Noteful: Notes & PDF MarkupNoteful: Notes & PDF MarkupFree4.8★ (24K)NoYesOct 2026
2PDF Expert: Editor & ReaderPDF Expert: Editor & ReaderFree4.7★ (216K)NoYesOct 2026
3Drawboard PDF Annotate, MarkupDrawboard PDF Annotate, MarkupFree4.8★ (1.9K)NoYesOct 2026
4Notability: AI Note JournalNotability: AI Note JournalFree4.8★ (457K)NoYesOct 2026
5Goodnotes: AI Notes, Docs, PDFGoodnotes: AI Notes, Docs, PDFFree4.7★ (459K)NoYesOct 2026
6PDF Gear - PDF Editor & ReaderPDF Gear - PDF Editor & ReaderFree4.7★ (8.7K)NoNoOct 2026
7PDF Pro - Reader Editor FormsPDF Pro - Reader Editor FormsFree4.7★ (6.9K)NoYesOct 2026
8PDF Annotate Expert - eSignPDF Annotate Expert - eSignFree2.3★ (6)NoYesMay 2026

Top Picks for PDF Annotate

4.8😊(24K ratings)
FreeIn-App Purchases
Noteful: Notes & PDF Markup screenshot 1
Noteful: Notes & PDF Markup screenshot 2
Noteful: Notes & PDF Markup screenshot 3
Noteful: Notes & PDF Markup screenshot 4
Noteful: Notes & PDF Markup screenshot 5
Noteful: Notes & PDF Markup screenshot 6

This app revolutionizes paperless note-taking on iPad, allowing for handwritten notes, document annotation, and knowledge organization. It offers a fluid writing experience, PDF markup, powerful tagging, and audio recording synced with notes.

What We Love

  • 🚀 Smooth writing experience
  • 👍 Intuitive and easy to use
  • 💡 Layers feature
  • 👍 Affordable one-time purchase
  • 🚀 Efficient and lightweight
  • 👍 Great organization with tags and folders
  • 👍 Customizable UI

Room to Improve

  • 🐛 Occasional crashes or freezes
  • 🔍 No handwriting recognition or search
  • 🔍 Limited text editing options
  • 🔍 Lack of advanced features like math conversion
  • 🔍 Exporting PDFs loses some formatting
PDF Expert: Editor & Reader#2

PDF Expert: Editor & Reader by Readdle Technologies Limited

Create, Edit & Sign Documents
Strong Contender
📊 Productivity
4.7😐(216K ratings)
FreeIn-App Purchases
#74in 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

  • 🚀 Fast and responsive
  • 👍 Intuitive and user-friendly interface
  • 💡 Powerful annotation and editing tools
  • 🔒 Seamless cloud integration
  • 📚 Excellent for reading and organizing PDFs

Room to Improve

  • 🐛 Frequent crashes and stability issues
  • 🔒 Subscription model for advanced features
  • 🔒 Inconsistent pricing and feature changes
  • 🔍 Cluttered and confusing UI in latest update
  • 🔍 Reduced customization options for annotations
Drawboard PDF Annotate, Markup#3

Drawboard PDF Annotate, Markup by Drawboard Pty Ltd

Write & Type on PDFs and Notes
Worth Considering
📊 Productivity
4.8😊(1.9K ratings)
FreeIn-App Purchases
Drawboard PDF Annotate, Markup screenshot 1
Drawboard PDF Annotate, Markup screenshot 2
Drawboard PDF Annotate, Markup screenshot 3
Drawboard PDF Annotate, Markup screenshot 4
Drawboard PDF Annotate, Markup screenshot 5
Drawboard PDF Annotate, Markup screenshot 6

Enhance your PDF workflow with powerful annotation and markup tools. This app offers a dynamic and intuitive experience for editing, drawing, and adding text to your documents. Access your work across multiple devices and collaborate in real-time.

What We Love

  • 🚀 Excellent PDF annotation tools
  • 👍 Convenient cross-platform sync
  • 🚀 Fast and responsive
  • 👍 Great for students and professionals
  • 🚀 Smooth writing experience with Apple Pencil

Room to Improve

  • 🐛 Occasional crashes and bugs
  • 🔒 Cloud storage limitations
  • 💰 Expensive subscription model
  • 🔍 Missing search and bookmark features
  • 🔧 Inconsistent functionality between platforms

More PDF Annotate apps to explore

FAQ about PDF Annotate

What are the best pdf annotate apps for iPhone?
Noteful: Notes & PDF Markup tops our pdf annotate apps ranking as of October 2026, with a 4.8-star average from 24K App Store ratings, and it's free to download.
Yes — 20 of the top pdf annotate apps we rank are free to download, including Noteful: Notes & PDF Markup and PDF Expert: Editor & Reader.
Noteful: Notes & PDF Markup has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 245+ pdf annotate apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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