Best Free PDF Viewer Apps

231+ iOS apps curated and reviewed

4.6 avg rating

19 free apps

Updated July 2026

The best free pdf viewer apps on iPhone average 4.6★ across 231+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.

Top Picks for Free PDF Viewer

#1

Acrobat Reader: PDF Editor by Adobe Inc.

Documents Editor & Converter

Editor's Choice

💼 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

#2

PDF Viewer by Nutrient by PSPDFKit GmbH

Fill Forms, Sign, Edit, Redact

Strong Contender

📊 Productivity

4.6😊(9.1K ratings)

FreeIn-App Purchases

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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.

What We Love

🚀 Seamless integration with iCloud and Files app
👍 Intuitive annotation tools with Apple Pencil
🎨 Versatile highlighting and drawing options
💾 Saves annotations to original PDF files

Room to Improve

🐛 Occasional crashes and performance issues
🤔 Confusing UI and steep learning curve
🔀 Difficulty managing and organizing PDF files

#3

PDF Reader - Viewer&Scanner by Appwords

PDF Reader&PDF Viewer

Worth Considering

🔧 Utilities

0.0(0 ratings)

Free

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More Free PDF Viewer apps to explore

PDF Reader – PDFelement

PDF Reader – PDFelement

PDF Editor & Viewer, PDF Maker

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

PDF Reader - Editor & Viewer

PDF Reader - Editor & Viewer

Editor, Converter, OCR

Edit, convert, and manage PDF documents on your mobile device. This app allows you to directly edit text, scan documents, fill out forms, and secure your files with passwords and watermarks. It also supports OCR to extract text from scans and convert PDFs to various formats.

Edit PDF text directlyConvert PDF to Word, Excel, PPT, imagesOCR for text extraction from scans

PDF Editor & Files Converter.

PDF Editor & Files Converter.

Convert & Compress Documents

Edit, scan, and convert documents directly on your mobile device. Modify text, add signatures, and organize pages without needing desktop software. Supports various file formats for seamless on-the-go document management.

Document scanning with auto-enhancementDirect PDF text editingPage management and organization

free with in-app purchases

PDF Editor-Converter & Viewer

PDF Editor-Converter & Viewer

Scan Documents: Reader & Maker

Easily create, edit, and manage PDF files. Convert images to PDFs, merge or split documents, add annotations, and secure your files with passwords. Cloud support allows for convenient access and sharing anywhere.

Create PDFs from images/textEdit and annotate PDFsMerge, split, and organize files

PDF Maker: Editor & Converter

PDF Maker: Editor & Converter

Convert Image: Scanner Reader

This app is an all-in-one PDF viewer and editor that allows you to quickly open, read, and manage your documents. It offers features like adding signatures, converting images to PDFs, and merging or splitting files to boost productivity.

View and read PDFsAnnotate documentsAdd signatures

free with in-app purchases

PDF Scanner: Editor & Reader

PDF Scanner: Editor & Reader

File Converter & Scan: Photos

Easily convert various file types, including documents, images, and spreadsheets, into high-quality PDFs. This app allows you to combine multiple files, organize pages, and share your creations directly from your mobile device.

Convert files to PDFImport from various sourcesCombine multiple files

free with in-app purchases

PDF Converter: PDF Compressor

PDF Converter: PDF Compressor

Sign PDF Doc Document to Photo

This app transforms your device into a digital document hub, converting various file types to high-quality PDFs. It offers comprehensive organization, editing, and security features, simplifying document handling for all users.

Convert photos and documents to PDFEdit PDFs with annotations and textMerge, split, and compress PDFs

free with in-app purchases

PDF Reader and PDF Viewer

PDF Reader and PDF Viewer

Read and view all PDF files

Easily manage, view, and read all PDF documents on your smartphone or tablet. This versatile app offers a simple interface for quick access to files, with features like zoom, dark mode, and easy sharing. It's designed for efficient document handling anytime, anywhere.

View and read all PDF filesSearch and display all PDFsZoom in and out

free with in-app purchases

PDF Expert: Editor & Converter

PDF Expert: Editor & Converter

Edit, Sign, Convert Documents

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

free with in-app purchases

PDF: Viewer - Editor

PDF: Viewer - Editor

Professional PDF Editor

Edit, Reader Converter Maker 7

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

free with in-app purchases

PDF Converter - Editor Viewer

PDF Converter - Editor Viewer

Multi format file to PDF

Document Converter To PDF Edit

Document Converter To PDF Edit

Convert Picture File & Photo

Easily convert photos, text, and web links into high-quality PDFs. Edit documents, add signatures, merge or split files, and organize everything with a built-in file manager. Streamline your document workflow for personal or professional use.

Convert photos, text, and links to PDFScan documents with cameraEdit PDFs: sign, annotate, merge, split

free with in-app purchases

Adobe Scan: PDF & OCR Scanner

Adobe Scan: PDF & OCR Scanner

Mobile Docs & Photo Converter

Transform your mobile device into a powerful document scanner. Easily convert paper documents, receipts, and IDs into professional-looking PDFs or JPEGs. Enhance scans with automatic straightening, stain removal, and editable text conversion.

High-speed bulk scanningConvert paper to PDF/JPEGAutomatic straightening

free with in-app purchases

PDFelement: PDF Editor, Viewer

PDFelement: PDF Editor, Viewer

Edit,read,sign,annotate pdf

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

free with in-app purchases

GoodReader PDF Editor & Viewer

GoodReader PDF Editor & Viewer

PDF Annotator, File Manager

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

free with in-app purchases

PDF Hero - PDF Editor & Reader

PDF Hero - PDF Editor & Reader

Create & Edit PDF Documents

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

free with in-app purchases