Best PDF Pen Apps

243+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated July 2026

Every iPhone needs a few good pdf pen apps. We benchmark 243+ 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 (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1PDF Expert: Editor & ConverterPDF Expert: Editor & ConverterFree4.7★ (216K)NoYesAug 2026
2Acrobat Reader: PDF EditorAcrobat Reader: PDF EditorFree4.7★ (637K)NoYesAug 2026
3PDFelement: PDF Editor, ViewerPDFelement: PDF Editor, ViewerFree4.6★ (7.5K)YesYesAug 2026
4Foxit PDF EditorFoxit PDF EditorFree4.5★ (4.8K)NoYesAug 2026
5PDF Converter&Editor - PDF ZenPDF Converter&Editor - PDF ZenFree4.7★ (109)YesNoJul 2026
6PDF Editor ,PDF Book Reader ®PDF Editor ,PDF Book Reader ®Free4.3★ (22K)NoYesAug 2026
7PDF Pro - Reader Editor FormsPDF Pro - Reader Editor FormsFree4.7★ (6.9K)NoYesAug 2026
8iLovePDF - PDF Editor & ScaniLovePDF - PDF Editor & ScanFree4.8★ (51K)NoYesAug 2026

Top Picks for PDF Pen

PDF Expert: Editor & Converter#1

PDF Expert: Editor & Converter by Readdle Technologies Limited

Edit, Read, Scan・Sign Document
Editor's Choice
📊 Productivity
4.7😐(216K ratings)
FreeIn-App Purchases
#54in Productivity
PDF Expert: Editor & Converter screenshot 1
PDF Expert: Editor & Converter screenshot 2
PDF Expert: Editor & Converter screenshot 3
PDF Expert: Editor & Converter screenshot 4
PDF Expert: Editor & Converter screenshot 5
PDF Expert: Editor & Converter 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

Room to Improve

  • 🐛 Frequent crashes and stability issues
  • 🔒 Subscription model for advanced features
  • 🔒 Inconsistent pricing and feature changes
Acrobat Reader: PDF Editor#2

Acrobat Reader: PDF Editor by Adobe Inc.

Documents Editor & Converter
Strong Contender
💼 Business
4.7😞(637K 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

  • 🚀 Fast and efficient
  • 🔒 Secure document storage
  • 👍 Convenient for reading and annotating PDFs
  • 👍 Useful for students and professionals

Room to Improve

  • 🐛 Buggy and unreliable
  • 🔒 Overly intrusive login requirements
  • 💰 Expensive subscription model
PDFelement: PDF Editor, Viewer#3

PDFelement: PDF Editor, Viewer by Wondershare Technology Group Co.,LTD

Convert & Sign PDF, AI-powered
Worth Considering
📊 Productivity
4.6😊(7.5K ratings)
FreeAdsIn-App Purchases
PDFelement: PDF Editor, Viewer screenshot 1
PDFelement: PDF Editor, Viewer screenshot 2
PDFelement: PDF Editor, Viewer screenshot 3
PDFelement: PDF Editor, Viewer screenshot 4
PDFelement: PDF Editor, Viewer screenshot 5
PDFelement: PDF Editor, Viewer screenshot 6

This application offers comprehensive PDF management, including advanced editing, AI-powered summarization and translation, and efficient scanning with OCR. It helps organize, convert, and secure documents for work, study, and personal use.

What We Love

  • 👍 Easy to use
  • 🚀 Efficient PDF editing
  • 💡 Comprehensive feature set
  • 🔒 Secure document handling

Room to Improve

  • 🐛 Occasional crashes or glitches
  • 🔋 High battery consumption
  • 🔒 Mandatory account required

More PDF Pen apps to explore

4
Foxit PDF Editor
Foxit PDF Editor
Foxit PDF Editor
View, Edit, Convert, and Sign
Free

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.

AI-powered PDF summarization and translationEdit text and images within PDFsConvert PDFs to and from various formats
📊 Productivity
(4.8K)
freemium
5
PDF Converter&Editor - PDF Zen
PDF Converter&Editor - PDF Zen
PDF Converter&Editor - PDF Zen
Smart PDF Converter & Editor
Free

This app converts PDFs to and from various document and image formats, maintaining original layouts. It includes OCR for text extraction from scanned documents and offers annotation tools like highlighting and e-signatures. Additional features like daily quotes and a Pomodoro timer enhance the user experience.

PDF to Word/Excel/PPT conversionPDF to Image conversionOCR for scanned PDFs
🔧 Utilities
(109)
ad-supported
6
PDF Editor ,PDF Book Reader ®
PDF Editor ,PDF Book Reader ®
PDF Editor ,PDF Book Reader ®
PDF Scanner -OCR,PDF Converter
Free

This app offers a comprehensive suite of tools for managing PDF documents. It allows users to read, edit, annotate, convert, and scan PDFs with an intuitive interface. Features include form filling, digital signatures, page management, and robust sharing options across Apple devices.

Read and edit PDFsAnnotate and markup documentsFill forms and add digital signatures
🔧 Utilities
(22K)
free with in-app purchases
7
PDF Pro - Reader Editor Forms
PDF Pro - Reader Editor Forms
PDF Pro - Reader Editor Forms
Edit, annotate, view documents
Free

Edit, annotate, and read PDF documents on your iPhone and iPad. Highlight text, add notes, shapes, voice recordings, and photos. Search your entire PDF library, fill out forms, and sign documents.

Edit and annotate PDFsHighlight text and add notesEmbed audio and photo annotations
📊 Productivity
(6.9K)
subscription
8
iLovePDF - PDF Editor & Scan
iLovePDF - PDF Editor & Scan
iLovePDF - PDF Editor & Scan
For Work, Study & E-Signing
Free

Edit, convert, annotate, and sign PDF documents on the go. This app offers tools to scan, merge, split, compress, and protect your files, enhancing productivity for work and study.

Scan documents to PDFConvert JPG/Office to PDFEdit and annotate PDFs
📊 Productivity
(51K)
freemium
9
pdfFiller: edit PDF documents
pdfFiller: edit PDF documents
pdfFiller: edit PDF documents
Scan, fill, sign,make pdf docs
Free

This app transforms your device into a mobile office for managing PDF documents. Edit, eSign, and fill out forms, then share or export them. It offers secure storage and access to millions of templates, with offline capabilities.

Edit PDF documentsEsign and fill out formsShare and collaborate on documents
💼 Business
(8.5K)
free with in-app purchases
10
PDF Editor ®
PDF Editor ®
PDF Editor ®
Edit, Reader Converter Maker 7
Free

Edit, sign, and convert PDF documents directly from your mobile device. Scan physical papers into editable PDFs, annotate text, and fill out forms on the go. All your documents are stored locally for privacy and can be easily shared.

Edit PDF filesSign documentsConvert scanned papers to PDF
💼 Business
(28K)
free with in-app purchases
11
PDF Gear - PDF Editor & Reader
PDF Gear - PDF Editor & Reader
PDF Gear - PDF Editor & Reader
PDF Converter, Sign Documents
Free

This app offers a comprehensive suite of tools for managing PDF documents on mobile devices. Users can easily view, annotate, edit pages, fill out forms, and digitally sign documents. It provides a free and unlimited experience for all its powerful PDF manipulation features.

View and print PDFsAnnotate with highlights, text, and drawingsOrganize pages (add, delete, rotate, extract)
💼 Business
(8.3K)
free
12
PDF Viewer by Nutrient
PDF Viewer by Nutrient
PDF Viewer by Nutrient
Fill Forms, Sign, Edit, Redact
Free

Easily view, search, and annotate PDF documents on your iPhone and iPad. Import files from cloud services, fill out forms, add signatures, and organize your documents. Advanced features like redaction and combining documents are available with a Pro subscription.

View and search PDFsAnnotate with highlights and notesSign documents digitally
📊 Productivity
(9.1K)
freemium
13
PDF Hero - PDF Editor & Reader
PDF Hero - PDF Editor & Reader
PDF Hero - PDF Editor & Reader
Create & Edit PDF Documents
Free

Edit, create, and manage PDF documents on your mobile device. Annotate, fill forms, sign, and share files with ease. Offers advanced features like OCR and compression for enhanced document control.

Create PDFs from scratchEdit text and annotate documentsFill and sign PDF forms
💼 Business
(10K)
free with in-app purchases
14
Drawboard PDF Annotate, Markup
Drawboard PDF Annotate, Markup
Drawboard PDF Annotate, Markup
Write & Type on PDFs and Notes
Free

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.

Dynamic PDF annotation toolsCross-platform access and cloud syncReal-time collaboration
📊 Productivity
(1.8K)
free with in-app purchases
15
PDF Editor: Read, Scan & Sign
PDF Editor: Read, Scan & Sign
PDF Editor: Read, Scan & Sign
Annotate, Scan, Convert to PDF
Free

Edit, read, scan, and convert PDF documents with a comprehensive suite of tools. Annotate, draw, and sign your files with ease. This app offers offline functionality and supports collaboration.

Edit and annotate PDF documentsScan physical documents to PDFConvert various file types to PDF
💼 Business
(7.4K)
free with in-app purchases
16
PDF Reader & Editor | Xodo
PDF Reader & Editor | Xodo
PDF Reader & Editor | Xodo
Smart Scan & Edit Documents
Free

Edit, sign, convert, and organize PDF documents with a comprehensive suite of tools. Scan images to PDF, compress files, and integrate with cloud storage for seamless access across devices. Offers advanced annotation and drawing capabilities.

Edit PDFsScan to PDFFill & Sign Forms
💼 Business
(1.7K)
freemium
17
PDF Reader – PDFelement
PDF Reader – PDFelement
PDF Reader – PDFelement
PDF Editor & Viewer, PDF Maker
Free

This app offers a superior PDF reading experience with its innovative Liquid Mode, which optimizes documents for mobile screens. It also provides robust tools for annotating, signing, managing, and sharing your PDF files, catering to both work and study needs.

Liquid Mode for optimized mobile readingAnnotation tools (pencil, text, highlighting)Handwritten signature insertion
📊 Productivity
(3.9K)
free
18
PDF Converter - Reader for PDF
PDF Converter - Reader for PDF
PDF Converter - Reader for PDF
PDF Scanner, Editor, Creator
Free

Easily find, create, convert, and edit PDF documents. Search for PDFs online, convert various file types to PDF, and download multiple files simultaneously. Annotate and highlight text within your documents.

Search PDFs onlineCreate PDFs from websitesConvert documents to PDF
🔧 Utilities
(18K)
free with in-app purchases
19
QuickNotes X: Notes, AI & PDF
QuickNotes X: Notes, AI & PDF
QuickNotes X: Notes, AI & PDF
Note-Taking, Made Easy.
Free

This app offers a fluid and precise note-taking experience with a custom vector ink engine, voice recording synced to writing, and ML-powered shape recognition. Organize notes with notebooks and folders, protect them with passwords and biometrics, and sync seamlessly across devices via iCloud. Mark up PDFs and presentations, and customize your notes with various tools and templates.

Vector ink engine for fluid writingVoice recording synced to notesML-powered shape recognition
📊 Productivity
(3.7K)
free with in-app purchases
20
Scanner App - Scan PDF & Docs
Scanner App - Scan PDF & Docs
Scanner App - Scan PDF & Docs
Convert Photo to PDF Scanner
Free

Transform your mobile device into a portable scanner. Easily digitize documents, receipts, and IDs, converting them to PDF or other formats. Features smart cropping, auto-enhancement, and real-time scanning for professional-quality results.

Portable scanner appOCR text recognitionConvert photo to PDF
💼 Business
(28K)
free with in-app purchases

FAQ about PDF Pen

What are the best pdf pen apps for iPhone?
PDF Expert: Editor & Converter tops our pdf pen apps ranking as of July 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 & Converter and Acrobat Reader: PDF Editor.
PDF Expert: Editor & Converter has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 243+ pdf pen apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
PDF Expert allows you to read, highlight, and annotate PDFs, fill out forms, convert files to and from PDF format, merge multiple documents, add notes, and sign contracts. It also features AI tools for summarizing and analyzing large PDFs, and editing scanned documents.
Premium features include the ability to edit existing text and images directly within a PDF, add links, create outlines, and utilize the AI-powered PDF Copilot for summarization, main point extraction, and contextual explanations. You can also convert PDFs to various formats like Word, Excel, and JPG.

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