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Best Highlight PDF Apps

250+ iOS apps curated and reviewed

4.4 avg rating
19 free apps
Updated August 2026

Whether you're new to highlight pdf or looking for an upgrade, our curated collection of 250+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Highlight PDF Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Highlights: PDF Reader & NotesHighlights: PDF Reader & NotesFree4.5★ (1.6K)NoYesAug 2026
2Noteful: Notes & PDF MarkupNoteful: Notes & PDF MarkupFree4.8★ (23K)NoYesAug 2026
3PDF Highlighter: Edit PDFPDF Highlighter: Edit PDFFree—NoYesMay 2026
4PDF Expert: Editor & ConverterPDF Expert: Editor & ConverterFree4.7★ (216K)NoYesAug 2026
5PDF Reader & PDF EditorPDF Reader & PDF EditorFree4.7★ (730)YesYesAug 2026
6PDF Highlighter & MarkupPDF Highlighter & MarkupFree—YesNoAug 2026
7PDF Highlighter - Read & EditPDF Highlighter - Read & EditFree3.0★ (1)NoNoJul 2026
8AI PDF Editor: Sign, HighlightAI PDF Editor: Sign, HighlightFree5.0★ (2)NoYesAug 2026

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
Highlights: PDF Reader & Notes screenshot 2
Highlights: PDF Reader & Notes screenshot 3
Highlights: PDF Reader & Notes screenshot 4
Highlights: PDF Reader & Notes screenshot 5
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
Noteful: Notes & PDF Markup#2

Noteful: Notes & PDF Markup by Noteful Technologies Ltd

Highlight. Write. Learn.
Strong Contender
📊 Productivity
4.8😊(23K 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

Room to Improve

  • 🐛 Occasional crashes or freezes
  • 🔍 No handwriting recognition or search
  • 🔍 Limited text editing options

More Highlight PDF apps to explore

4
PDF Expert: Editor & Converter
PDF Expert: Editor & Converter
PDF Expert: Editor & Converter
Edit, Read, Scan・Sign Document
Free

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.

Edit PDF text and imagesAnnotate and highlight PDFsFill out PDF forms
📊 Productivity
(216K)
free with in-app purchases
5
PDF Reader & PDF Editor
PDF Reader & PDF Editor
PDF Reader & PDF Editor
Read, Edit, Sign PDF Files
Free

This app is a comprehensive tool for managing PDF documents. It allows users to quickly view, annotate, edit, and organize PDFs, as well as convert images to PDF. Advanced features like merging, splitting, and password protection are also available.

Fast PDF viewingPDF annotation and markupAdd e-signatures
💼 Business
(730)
free with in-app purchases
6
PDF Highlighter & Markup
PDF Highlighter & Markup
PDF Highlighter & Markup
Highlight and share PDFs
Free
📊 Productivity
(0)
7
PDF Highlighter - Read & Edit
PDF Highlighter - Read & Edit
PDF Highlighter - Read & Edit
by Jaydeep Dhameliya
Free

Easily edit and highlight text, photos, and documents directly on your phone. This app provides realistic highlighting tools and drawing functions to mark important sections of PDFs and images, allowing you to save and share your annotated files.

Edit and highlight PDF files and photosUse realistic highlighter pen toolFreehand drawing with pen, line, arrow, rectangle, and circle tools
📊 Productivity
(1)
free
8
AI PDF Editor: Sign, Highlight
AI PDF Editor: Sign, Highlight
AI PDF Editor: Sign, Highlight
Annotate, Fill, Convert PDF
Free

Edit, sign, convert, and manage PDF documents directly on your phone. Streamline your workflow by making changes to text and images, adding signatures, and converting files without needing a desktop or multiple applications.

Edit text and images in PDFsConvert photos/scans to PDFAdd signatures and annotations
📊 Productivity
(2)
free with in-app purchases
9
PDF Reader: Edit & Sign
PDF Reader: Edit & Sign
PDF Reader: Edit & Sign
Read, convert, sign PDF files
Free

Easily manage your PDF files on your phone with tools for reading, editing, signing, and converting documents. Import files, use the camera, and access recent documents quickly. Convert various file types to PDF and perform essential PDF management tasks like merging and splitting.

Sign documentsAdd text to PDFsHighlight and underline content
🔧 Utilities
(1)
ad-supported
10
Eclipse: Dark Mode PDF Reader
Eclipse: Dark Mode PDF Reader
Eclipse: Dark Mode PDF Reader
by Burak ANI
Free
📊 Productivity
(0)
11
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
12
PDF Editor Scanner: PDFStation
PDF Editor Scanner: PDFStation
PDF Editor Scanner: PDFStation
Scan, Edit, Convert PDF OCR AI
Free

This mobile app transforms your device into a powerful PDF scanner and editor. It uses AI to scan, convert, edit, sign, and organize PDF documents, offering features like OCR, text summarization, and secure password protection.

AI-powered document scanningEdit, annotate, and sign PDFsConvert between PDF and other formats
📊 Productivity
(3)
free
13
NestDocs: PDF Editor&Converter
NestDocs: PDF Editor&Converter
NestDocs: PDF Editor&Converter
by 源 金
Free
🔧 Utilities
(0)
14
PDF Reader, Editor & Scanner
PDF Reader, Editor & Scanner
PDF Reader, Editor & Scanner
Read,Edit PDF,Word,Excel,PPT
Free
💼 Business
(0)
15
PDF Reader: Edit & OCR Scan
PDF Reader: Edit & OCR Scan
PDF Reader: Edit & OCR Scan
Sign, annotate & convert files
Free

Easily scan, read, edit, and manage PDF documents on your iPhone and iPad. Convert images to PDF, extract text with OCR, and sign your documents. Organize files with merging, splitting, and password protection.

Scan documents with cameraConvert photos to PDFExtract text with OCR
📊 Productivity
(3)
free with in-app purchases
16
PDF Toolkit - Organize & Edit
PDF Toolkit - Organize & Edit
PDF Toolkit - Organize & Edit
Manage, Merge & Annotate PDFs
Free

Organize, edit, and manage your PDF documents locally on your device. Create custom categories, use color tags for important files, and combine or extract pages. Extract text from scans and images using OCR, and annotate directly on PDFs.

Custom document categoriesColor tags for important filesCombine multiple PDFs
📊 Productivity
(1)
ad-supported
17
PDF Organizer - Tagaeff
PDF Organizer - Tagaeff
PDF Organizer - Tagaeff
Auto color highlights & search
Free
📊 Productivity
(0)
18
RePaper Web PDF Highlighter
RePaper Web PDF Highlighter
RePaper Web PDF Highlighter
Highlight web pages and PDF
$2.99

Annotate web pages, PDFs, Word, and PowerPoint documents with customizable highlights and comments. Organize your content into folders and sync across devices using iCloud. Share and export your annotated files to various cloud services and other apps.

Highlight web pages and PDFsAdd comments in multiple colorsReader View for web and PDF
📊 Productivity
(11)
free
19
PDF Noted
PDF Noted
PDF Noted
Extract and export PDF notes
Free
📊 Productivity
(0)
20
PDF Toolkit-Editor&Reader
PDF Toolkit-Editor&Reader
PDF Toolkit-Editor&Reader
All-in-One PDF Editor&Merge
Free
🔧 Utilities
(0)

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FAQ about Highlight PDF

What are the best highlight pdf apps for iPhone?
Highlights: PDF Reader & Notes tops our highlight pdf apps ranking as of August 2026, with a 4.5-star average from 1.6K App Store ratings, and it's free to download.
Yes — 19 of the top highlight pdf apps we rank are free to download, including Highlights: PDF Reader & Notes and Noteful: Notes & PDF Markup.
Highlights: PDF Reader & Notes has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 250+ highlight pdf apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Highlights is a PDF reader designed for research. It allows you to read, browse, and annotate PDF documents with various tools like highlighting, underlining, and strikethrough. It also extracts your annotations into organized notes and can convert table data and recognize text within PDFs.
Key features include reading and browsing PDFs, annotating text and images, adding comments, extracting annotations into notes, converting table data to CSV, recognizing text from images, and smart copying of annotations into formats like BibTex for citations.