Best PDF Highlighter Apps

250+ iOS apps curated and reviewed

4.4 avg rating
18 free apps
Updated July 2026

With an average user rating of 4.4★, the pdf highlighter category is one of the App Store's strongest. Browse all 250+ apps we track, sorted so the most loved ones surface first.

Compare top PDF Highlighter Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Highlights: PDF Reader & NotesHighlights: PDF Reader & NotesFree4.5★ (1.6K)NoYesAug 2026
2PDF Highlighter - Annotate PDFPDF Highlighter - Annotate PDFFreeNoYesMay 2026
3PDF Highlighter: Edit PDFPDF Highlighter: Edit PDFFreeNoYesMay 2026
4PDF Highlighter & MarkupPDF Highlighter & MarkupFreeYesNoJun 2026
5PDF Expert: Editor & ConverterPDF Expert: Editor & ConverterFree4.7★ (216K)NoYesAug 2026
6PDF Highlighter - Read & EditPDF Highlighter - Read & EditFree3.0★ (1)NoNoJul 2026
7Acrobat Reader: PDF EditorAcrobat Reader: PDF EditorFree4.7★ (637K)NoYesAug 2026
8PDF HighlighterPDF Highlighter$1.99NoNoMay 2026

Top Picks for PDF Highlighter

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

More PDF Highlighter apps to explore

4
PDF Highlighter & Markup
PDF Highlighter & Markup
PDF Highlighter & Markup
Highlight and share PDFs
Free
📊 Productivity
(0)
5
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
6
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
7
Acrobat Reader: PDF Editor
Acrobat Reader: PDF Editor
Acrobat Reader: PDF Editor
Documents Editor & Converter
Free

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.

View, edit, and annotate PDFsSign and fill PDF formsConvert files to and from PDF
💼 Business
(637K)
freemium
8
PDF Highlighter
PDF Highlighter
PDF Highlighter
Automatic highlight annotation
$1.99
📊 Productivity
(0)
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
PDF Reader, Editor & Scanner
PDF Reader, Editor & Scanner
PDF Reader, Editor & Scanner
Read,Edit PDF,Word,Excel,PPT
Free
💼 Business
(0)
11
HighlightPDF -iReadPDF
HighlightPDF -iReadPDF
HighlightPDF -iReadPDF
Highlight PDF text
Free
📊 Productivity
(0)
12
Scanner PDF: Scan & Edit
Scanner PDF: Scan & Edit
Scanner PDF: Scan & Edit
Scan, Edit & Sign PDFs
Free
📊 Productivity
(0)
13
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
(1)
free with in-app purchases
14
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
15
Genius Scan - PDF Scan
Genius Scan - PDF Scan
Genius Scan - PDF Scan
PDF Scanner & OCR
Free
🔧 Utilities
(0)
16
PDF Toolkit-Editor&Reader
PDF Toolkit-Editor&Reader
PDF Toolkit-Editor&Reader
All-in-One PDF Editor&Merge
Free
🔧 Utilities
(0)
17
Mark PDF: PDF Editor & Scanner
Mark PDF: PDF Editor & Scanner
Mark PDF: PDF Editor & Scanner
Convert merge Fill & Sign PDF
Free

Edit, scan, merge, and compress PDF documents with a user-friendly interface. Offers advanced features like image extraction, annotation tools, and secure document management. Pro features include LLM summarization and webpage conversion.

Advanced PDF scanning with auto-cropMerge and organize multiple PDF filesExtract images from PDFs
💼 Business
(0)
freemium
18
Eclipse: Dark Mode PDF Reader
Eclipse: Dark Mode PDF Reader
Eclipse: Dark Mode PDF Reader
by Burak ANI
Free
📊 Productivity
(0)
19
PDF Scanner - File Reader
PDF Scanner - File Reader
PDF Scanner - File Reader
Scan, Edit, Merge & Manage
Free

Transform your iPhone into a powerful document studio. Scan, read, edit, merge, and manage all your PDF files with this all-in-one, ultra-fast, and intuitive application. Keep your documents confidential with local processing.

Intelligent document scanningPDF reading and annotationDrawing and easy signing
🔧 Utilities
(2)
ad-supported
20
PDF Reader & Editor: AI Scan
PDF Reader & Editor: AI Scan
PDF Reader & Editor: AI Scan
Sign, Merge, Annotate & Fill
Free
📊 Productivity
(0)

FAQ about PDF Highlighter

What are the best pdf highlighter apps for iPhone?
Highlights: PDF Reader & Notes tops our pdf highlighter apps ranking as of July 2026, with a 4.5-star average from 1.6K App Store ratings, and it's free to download.
Yes — 18 of the top pdf highlighter apps we rank are free to download, including Highlights: PDF Reader & Notes and PDF Highlighter - Annotate PDF.
Highlights: PDF Reader & Notes has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 250+ pdf highlighter apps on the iOS App Store as of July 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.

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