Comparison

Acrobat Reader vs OpenDocument Reader Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Acrobat Reader

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.

Highlights
  • View, edit, and annotate PDFs
  • Sign and fill PDF forms
  • Convert files to and from PDF
  • AI-powered document summarization
  • Collaborate in PDF Spaces
  • Compress and secure PDFs
  • Optical Character Recognition (OCR)
Features
Read full description

Major new updates: Collaborate and share your files in PDF Spaces, and turn your document summaries into podcast-style audio in Acrobat Studio. The world’s most trusted PDF reader, PDF editor, and PDF maker with more than 635 million installs. View, share, annotate, add comments, and sign documents - all in one app. You can store your files online and read documents anywhere. Get your 7-day free trial and try all the features of Acrobat Reader. Paid features: Adobe Acrobat AI Assistant • Work across multiple files in one place with PDF Spaces. Collaborate, store, and use AI Assistant across files • Use voice or text prompts with AI Assistant chatbot • Ask questions and get cited answers about details in your document, including charts, graphs, and tables with Figures Q&A • Easily share the responses you get • Try voice support to ask queries and have answers read aloud. • Use new Hands-free to keep the conversation flowing with voice only • Instantly generate summaries from your PDFs with Generative AI Summaries • Get content for emails, text, study notes, blogs, and more [Adobe Acrobat AI Assistant is a paid feature*, free for a limited time] Edit PDFs • With our PDF editor, edit text and images directly in your PDF (mobile only) • Fix typos or add paragraphs with the PDF editor • Easily add, delete, or rotate any image • Use this PDF signer and PDF viewer to get your docs just right Recognize text • Optical Character Recognition (OCR) turns scanned PDFs into searchable, editable text to use in other formats Merge & organize PDFs with PDF Converter • Split or combine multiple files into one PDF with PDF converter • Use the PDF editor to insert, delete, rotate, crop & reorder pages in your PDF file Create, convert & export PDFs • Easily convert to PDF from any file type including Microsoft, Google Docs, and images • Export and convert PDFs to Microsoft Word, Excel, PowerPoint, or various image files • Convert web pages to PDFs Compress & highly secure PDFs • Compress PDF files for easy saving and sharing • Password Protect PDF documents Have your PDF read aloud • Listen to your PDFs on the go, great for reading support • Choose free voices or upgrade for high-quality options Subscribe now to access all these features and use Acrobat across mobile and web platforms. Free-to-use features: PDF signer: Fill & Sign Adobe Fill & Sign is free & available in Acrobat Reader. A form filler and PDF signer that lets you fill, sign, and send Liquid mode in the optimal PDF viewer • Get the best PDF reading experience with this PDF viewer • Search, navigate & adjust font size or spacing to fit your screen Annotate PDFs • Add sticky notes, comments, and highlight text Store & manage files • Link online storage accounts like Microsoft OneDrive, Dropbox, or Google Drive • Star files to quickly open important documents Connect the PDF viewer and reader to Google Drive • A PDF creator that lets you edit, compress, and export Google Drive files with a subscription Work with scanned documents • Access scanned PDFs from Adobe Scan in Acrobat to fill, sign, and share The Acrobat Reader mobile app is designed to work with customers who have Enterprise Mobility Management (EMM) enabled. *An Adobe Acrobat AI Assistant add-on plan is available to Acrobat Individual customers. iOS 16 or above required. Terms & Conditions: Your use of this application is governed by the Adobe General Terms of Use http://www.adobe.com/go/terms_linkfree_en and the Adobe Privacy Policy http://www.adobe.com/go/privacy_policy_linkfree_en Do not sell or share my personal information www.adobe.com/go/ca-rights-linkfree

About

OpenDocument Reader Pro

View and edit ODF files like ODT, ODS, and ODP on your mobile device. Access documents from cloud storage or your device's file explorer, and even open password-protected files. Supports a wide range of other file formats for comprehensive document management.

Highlights
  • View and edit ODT, ODS, ODP files
  • Supports LibreOffice and OpenOffice formats
  • Open files from cloud storage and other apps
  • Edit documents with basic text modifications
  • Open password-protected documents
  • Search and highlight keywords
  • Offline capability
Features
Currently charting
Read full description

Read documents created using LibreOffice or OpenOffice on the go, wherever you keep them, with the Document Reader! The file reader lets you open files like ODF (Open Document Format) documents created using LibreOffice or OpenOffice wherever you are. In the bus on your way to school wanting to look at your notes before the big exam? No problem! With the Document Reader you can open files wherever you like and read & search through your documents to go in a clean and simple way. There is a text editor in here as well, for the last typo before a document goes out. It is a young one and it does not reach every document yet, so the reader is what this app is for. The Pro version also adds new paragraphs, text formatting such as bold, colours and sizes, and more ways to mark PDFs: underline, strike out and draw. You can open files from ODF (ODT, ODS & many more) that you have created with Libre Office or OpenOffice also from within other apps. Supported apps include GMail, Google Drive, iCloud, OneDrive, Nextcloud, Box.net, Dropbox and lots of others! Or use our integrated file explorer instead to open files on your device. THE ALL IN ONE DOCUMENT READER *open files with ODF: ODT (writer), ODS (calc), ODP and ODG without a hassle *fix typos, edit spreadsheet cells and highlight text in documents and PDFs *securely open password-protected documents *search for keywords in your ODT (writer), ODS (calc) or ODG and highlight them *print documents if your device is connected to a printer *read your documents in fullscreen to avoid distractions *select and copy text out of your documents *enjoy your documents even without internet connectivity - fully offline capable *read out aloud your documents using Text-To-Speech technology DOCUMENTS TO GO - WHEREVER YOU LIKE In addition to that, the document reader aims to support various other file formats as well as possible: - Portable Document Format (PDF) - Archives: ZIP - Images: JPG, JPEG, GIF, PNG, WEBP, TIFF, BMP, SVG, etc - Videos: MP4, WEBM, etc - Audio: MP3, OGG, etc - Text files: CSV, TXT, HTML, MD, RTF - Microsoft Office (OOXML): Word (DOC, DOCX), Excel (XLS, XLSX), PowerPoint (PPT, PPTX) - Apple iWork: Pages, Numbers, Keynote - Libre Office and Open Office ODF (ODT, ODS, ODP, ODG, FODT, FODS, FODP, FODG) This app is open source. We are not affiliated with OpenOffice, LibreOffice or similar. Made in Austria. We highly appreciate all kinds of feedback via email. ODF is the format used by office suites like Open Office and Libre Office. Text documents (Writer, ODT), as well as spreadsheets (Calc, ODS) and also presentations (Impress, ODP) are supported, including complex formatting and embedded images. Graphs are no problem either. If you want to secure your data you can even open password-protected documents. Other applications that are using this format are LibreOffice, OpenOffice, NeoOffice, StarOffice, Go-oo, IBM Workplace, IBM Lotus Symphony, ChinaOffice, AndrOpen Office, Co-Create Office, EuroOffice, KaiOffice, Jambo OpenOffice, MagyarOffice, MultiMedia Office, MYOffice, NextOffice, OfficeOne, OfficeTLE, OOo4Kids, OpenOfficePL, OpenOfficeT7, OxOffice, OxygenOffice, Pladao Office, PlusOffice, RedOffice, RomanianOffice, SunShine Office, ThizOffice, UP Office, White Label Office, WPS Office Storm, Libre Office, Collabora Office and 602Office.

Screenshots

Acrobat Reader4 screens
OpenDocument Reader Pro4 screens

Verdict

The call

The clearest difference is price: Acrobat Reader at Free against OpenDocument Reader Pro's $3.99. Acrobat Reader also leads on review sentiment (49% vs 20%) and rating (4.6 vs 4.2). OpenDocument Reader Pro's advantage is in-app purchases (none vs 18) and iOS requirement (15.0 vs 18.3). On ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Acrobat Reader is free to download; OpenDocument Reader Pro costs $3.99 up front. Acrobat Reader sells 16 in-app purchases, starting at $3.99 per month. OpenDocument Reader Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Acrobat Reader holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: Acrobat Reader has 654K ratings behind it against 292, so its average is the more settled of the two. Written reviews point the same way: 49% of Acrobat Reader's written reviews are positive against 20% of OpenDocument Reader Pro's.

UpkeepUpdate frequency

Acrobat Reader ships an update every 9 days, OpenDocument Reader Pro every 2 months. The most recent releases landed on September 29, 2026 and September 25, 2026 respectively.

Scorecard9 real differences · 2 level
Acrobat Reader versus OpenDocument Reader Pro: the parameters behind the verdict, then further details
ParameterAcrobat ReaderOpenDocument Reader Pro
PriceFree — better$3.99
Rating4.6 (654K ratings) — better4.2 (292 ratings)
Positive reviews49.1% of reviews — better19.5% of reviews
Number of ratings654K — better292
Update frequencyEvery 9 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumAd-supported — better
Best chart rank#2 — better#68
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.315.0 — better
Further details — not scored
Size522 MB6 MB
Age rating4+4+
DeveloperAdobe Inc.Stefl und Taschauer OG

Customer experience

Acrobat Reader

All ratings654,141 ratings
Positive91.4%
Neutral2.4%
Negative6.2%
Written reviews3,158 reviews
Positive49.1%
Neutral4.4%
Negative46.6%

OpenDocument Reader Pro

All ratings292 ratings
Positive78.8%
Neutral5.8%
Negative15.4%
Written reviews82 reviews
Positive19.5%
Neutral6.1%
Negative74.4%

User reviews

Acrobat Reader

From 654K App Store ratings

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
  • 👎 Counterintuitive user interface changes
  • 🔍 Poor search and organization features

OpenDocument Reader Pro

From 292 App Store ratings

What we love

  • 👍 Can open documents
  • 👍 Can view documents
  • 👍 Imports OpenOffice beautifully
  • 👍 Useful for quick edits
  • 👍 Offline functionality

Room to improve

  • 🐛 Cannot edit documents
  • 🐛 Formatting issues
  • 🐛 Text illegible/overlapping
  • 🐛 App crashes
  • 🐛 Does not save changes

Bugs and requests

Acrobat Reader

Reported bugs

4 issues
  • Frequent crashes and freezes
  • Inconsistent behavior when editing PDFs
  • Inability to open or save certain file types
  • Sync issues between mobile and desktop versions

Requested features

5 requests
  • Add erase tool for annotations
  • Improve palm rejection for Apple Pencil
  • Allow direct text editing in PDFs
  • Provide better cloud integration and sync
  • Offer more customization options

OpenDocument Reader Pro

Reported bugs

24 issues
  • App crashes when saving
  • App crashes when opening files
  • App crashes when typing
  • App crashes when searching
  • Changes not saved
Show 19 more
  • Formatting not retained
  • Text overlapping
  • Files not opening
  • Images not loading
  • Cyrillic characters displayed incorrectly
  • Documents corrupted upon opening
  • Cannot edit PDF files
  • Only first sheet of multi-sheet files visible
  • Incompatible with VoiceOver
  • Documents displayed as plain text
  • Cannot create new documents
  • Cannot extend existing documents
  • Search function not working
  • App crashes when trying to edit blank page
  • File saving issues after iPadOS 14 upgrade
  • ODG draw documents only show first page
  • Cannot edit audio files
  • App crashes when opening .xlsx file
  • No editing functionality for VoiceOver users

Requested features

9 requests
  • Add search function
  • Add ability to create new documents
  • Improve editing functionality
  • Fix formatting issues
  • Improve handling of large files
Show 4 more
  • Support for more file types
  • Improve compatibility with VoiceOver
  • Add dark mode
  • Add advanced analytics dashboard

In-app purchases

16 purchases

Acrobat Reader

Subscriptions16
  • Acrobat Premium - Monthly$3.991 Month
  • Adobe Acrobat Premium$4.991 Month
  • AI Assistant for Acrobat$6.991 Month
Show 13 more
  • Acrobat Premium$7.497 Days
  • Acrobat Premium - Monthly$9.991 Month
  • Acrobat Premium - Weekly$9.997 Days
  • PDF Pack - Doc Creator$9.991 Month
  • Premium - Edit & Create PDF$9.991 Month
  • PDF Edit and Convert Monthly7 Days trial$12.991 Month
  • Acrobat Premium - Monthly$12.991 Month
  • Acrobat Premium - Monthly$14.991 Month
  • Acrobat Reader Plus - Yearly$19.991 Year
  • Adobe ExportPDF$23.991 Year
  • Adobe Acrobat Pro$24.991 Month
  • Acrobat Premium - Yearly7 Days trial$48.991 Year
  • Acrobat Premium - Yearly7 Days trial2 variants$69.991 Year
None

OpenDocument Reader Pro

No in-app purchases

Questions

Is Acrobat Reader free?
Acrobat Reader is free to download, with in-app purchases available.
Is OpenDocument Reader Pro free?
OpenDocument Reader Pro costs $3.99, with no in-app purchases.
Which has better reviews, Acrobat Reader or OpenDocument Reader Pro?
Acrobat Reader is rated higher. Acrobat Reader averages 4.6 out of 5 from 654K ratings, while OpenDocument Reader Pro averages 4.2 from 292 ratings.
Do Acrobat Reader or OpenDocument Reader Pro have ads?
Neither Acrobat Reader nor OpenDocument Reader Pro shows ads.
Which is updated more often, Acrobat Reader or OpenDocument Reader Pro?
Acrobat Reader ships an update every 9 days, and OpenDocument Reader Pro every 2 months. Most recently, Acrobat Reader was updated on September 29, 2026 and OpenDocument Reader Pro on September 25, 2026.
Which is more popular, Acrobat Reader or OpenDocument Reader Pro?
Acrobat Reader currently peaks at #2 in the App Store charts, and OpenDocument Reader Pro at #68. Chart position reflects recent download velocity rather than total install base.

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