Best Highlight PDF Apps

238+ iOS apps curated and reviewed

4.6 avg rating
19 free apps
Updated May 2026

Whether you're new to highlight pdf or looking for an upgrade, our curated collection of 238+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for Highlight PDF

Highlights: PDF Reader & Notes#1

Highlights: PDF Reader & Notes by Jonas Myren Ribe

Edit Research Documents/Books
Editor's Choice
📊 Productivity
4.5😐(1.6K ratings)
FreeIn-App Purchases
Highlights: PDF Reader & Notes screenshot 1
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Highlights: PDF Reader & Notes screenshot 6

This app is a fast and lightweight PDF reader designed for research. It allows users to read, highlight, and annotate documents, and then extract this information into organized notes. Advanced features include table data extraction, text recognition, and smart copying of annotations into various formats.

What We Love

  • 🚀 Great for highlighting and annotating PDFs
  • 🔍 Effective for research and note-taking
  • 📚 Useful for academic and professional work
  • 👍 Clean and intuitive user interface

Room to Improve

  • 💰 Subscription model is too expensive
  • 🐛 Frequent crashes and bugs
  • 🔍 Limited search functionality
PDF Expert: Editor & Converter#2

PDF Expert: Editor & Converter by Readdle Technologies Limited

Edit, Sign, Convert Documents
Strong Contender
📊 Productivity
4.7😐(215K ratings)
FreeAdsIn-App Purchases
#51in Productivity
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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#3

Acrobat Reader: PDF Editor by Adobe Inc.

Documents Editor & Converter
Worth Considering
💼 Business
4.7😞(628K ratings)
FreeAdsIn-App Purchases
#2in Business
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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

More Highlight PDF apps to explore

4
Noteful: Notes & PDF Markup
Noteful: Notes & PDF Markup
Noteful: Notes & PDF Markup
Highlight. Write. Learn.
Free

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.

Handwritten notes with Apple PencilPDF and document annotationOrganize notes with tags
📊 Productivity
(22K)
freemium
5
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
6
GoodReader PDF Editor & Viewer
GoodReader PDF Editor & Viewer
GoodReader PDF Editor & Viewer
PDF Annotator, File Manager
$5.99

This app offers robust PDF editing and viewing capabilities, alongside comprehensive file management tools. It allows users to annotate PDFs, manage files from various cloud services, and secure sensitive data with advanced encryption. Enjoy a superior reading experience with features like PDF Reflow and split-screen viewing.

PDF annotation and editingExtensive file format supportCloud service integration (Dropbox, Google Drive, etc.)
📊 Productivity
(14K)
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
(6.8K)
subscription
8
PDFelement: PDF Editor, Viewer
PDFelement: PDF Editor, Viewer
PDFelement: PDF Editor, Viewer
Edit,read,sign,annotate pdf
Free

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.

AI Chat with PDFScan and OCRPDF to Office Conversion
📊 Productivity
(7.5K)
free with in-app purchases
9
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
10
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
11
ReadEra – book reader pdf epub
ReadEra – book reader pdf epub
ReadEra – book reader pdf epub
Read books & PDF files easily!
Free

This app allows you to read and listen to books and documents in various formats, including PDF and EPUB. It offers text-to-speech functionality, customizable reading settings, and a built-in book manager for your library. Enjoy an ad-free and registration-free reading experience.

Multi-format ebook support (EPUB, PDF, MOBI, DOCX, etc.)Text-to-Speech (TTS) for listening to booksAd-free and registration-free experience
📚 Books
(222)
free
12
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
(50K)
freemium
13
PDF Photos
PDF Photos
PDF Photos
Picture to PDF Converter
Free

Easily convert your photos into professional-looking PDFs. Customize layouts, add branding elements like headers and footers, and control file size for efficient sharing. Save and share your documents across various cloud services or directly via email and printing.

Convert photos to PDFCustomizable photo layoutsAdd cover pages, headers, and footers
💼 Business
(14K)
free with in-app purchases
14
PDF Editor: Read, Scan & Sign
PDF Editor: Read, Scan & Sign
PDF Editor: Read, Scan & Sign
Markup, PDF Converter & Reader
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
(6.9K)
free with in-app purchases
15
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
16
PDF Gear - PDF Editor & Reader
PDF Gear - PDF Editor & Reader
PDF Gear - PDF Editor & Reader
PDF Converter for acrobat PDF
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
(7.6K)
free
17
CamScanner - PDF Scanner App
CamScanner - PDF Scanner App
CamScanner - PDF Scanner App
Сканер текста,фото,файлов PDF
Free

Transform your mobile device into a powerful portable scanner. Instantly scan, edit, and share documents in various formats like PDF, JPG, Word, and TXT. Features include OCR, e-signatures, and secure file management.

Mobile document scanningText recognition (OCR)PDF conversion
📊 Productivity
(1.8M)
free with in-app purchases
18
Goodnotes: AI Notes, Docs, PDF
Goodnotes: AI Notes, Docs, PDF
Goodnotes: AI Notes, Docs, PDF
Note taking, canvas & work app
Free

Capture ideas, enhance productivity, and unlock insights with advanced AI features. This app offers tools for professionals, students, and creatives, including infinite whiteboards, AI-powered transcription and summarization, and customizable digital notebooks.

AI-powered transcription and summarizationInfinite whiteboard canvasDigital notebooks with customizable templates
📊 Productivity
(431K)
free with in-app purchases
19
Ezy PDF
Ezy PDF
Ezy PDF
New choice of efficient office
Free

This application offers a comprehensive suite of tools for managing PDF documents. It allows users to merge, split, and edit PDFs, as well as convert images into PDF format, streamlining document workflows with an intuitive interface and fast processing.

Edit PDF size and layoutMerge multiple PDF filesSplit large PDFs into smaller parts
🌟 Lifestyle
(2.6K)
free with in-app purchases
20
PDF Converter - Word to PDF
PDF Converter - Word to PDF
PDF Converter - Word to PDF
Photo to PDF maker & Scan doc
Free

Easily convert documents to and from PDF format in just three steps. Create PDFs from images, share converted files, and manage your conversion history. Supports a wide range of input and output file types.

Convert documents to PDFCreate PDF from imagesSupports numerous file formats
📊 Productivity
(32K)
free with in-app purchases