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iAnnotate is the best way to read, annotate, and share PDFs, Microsoft Office files, images and web pages! Over 1 million people turn to iAnnotate to take notes, sign agreements, highlight documents, insert stamps and more.

New in v4: iPhone support, iPad Pro and multitasking support, automatic Apple Pencil detection, shape annotations, improved web markup, enhanced support for OneDrive (and OneDrive for Business), iCloud Drive, and iCloud backup.

iAnnotate’s award-winning interface and customizable set of features make it the go-to app for taking notes on lecture slides, annotating important business documents, revising screenplays, grading papers, and much more. Read on to learn about the great capabilities of iAnnotate:

IPHONE: Now you can use iAnnotate on your phone, with all of the great features you’ve come to expect on your iPad.

IPAD PRO: iAnnotate works great with the iPad Pro. Automatically annotate when you use the Apple Pencil and easily pan, zoom, scroll with your fingers — no tool switching required. Get more work done with iOS multitasking and smart keyboard shortcuts.

ANNOTATE: Choose from the pen, highlighter, typewriter, stamp, straight-line, note, underline, strikeout, photo, voice recording, arrow, rectangle, circle, and date stamp tools.

CUSTOMIZE: Drag and drop tools to your custom toolbars. Swipe between toolbars, or open the Toolbox to access all your tools.

ACCESS: Connect with Box, Dropbox, Google Drive, OneDrive (including OneDrive for Business) or open PDFs directly from email and other apps.

SEARCH: Search documents in your local library and throughout your cloud storage.

SHARE: iAnnotate saves your markups directly to the PDF, so they can be viewed and edited in external PDF readers.

FLATTEN: Compress your annotations onto the document to prevent modification. This is useful for preserving signatures or for preventing recipients from deleting or changing your annotations.

WEB MARKUP: Open a web capture tab and find the site you want to mark up. iAnnotate will convert it to a PDF for annotation.

NAVIGATE: Explore your documents by thumbnails, bookmarks, annotations, or search results.

UNLIMITED TABS: Open multiple documents in tabs, and easily navigate between them, on both tablet and phone.

TWO DOCUMENTS: Work on two documents side-by-side, for even greater productivity.

MANAGE: Arrange documents by folders and sort contents by date added, date last opened, or alphabetical order.

CREATE: Create brand new PDFs with blank, lined, or graph-paper pages.

MODIFY: Add, delete, rotate, and rearrange pages in your documents.

SUMMARIZE: Forward a summary of your annotations as an email or a new PDF.

SECURE: Full support for the iOS Data Protection and Keychain functions.

Interested in using iAnnotate in your business or school? Contact us to find out about our enterprise options.

What’s New

Version 4.7.8

We've added a number of features and fixed a few bugs -- please see all the features below:

Scan a document directly into a document you're working on: a) With document open tap on the “four square” icon in top right to enter outline view, b) Navigate to the page you’d like to add the new document behind, c) Tap “edit” on top, then tap “add” on bottom, capture your image, then tap “save” (or add
page, to add additional scans), page will then be added.

Change from dark to light on a document with Smart Invert: With a document open, tap on the orange tab at the top and select “Enable Smart Invert.”

Improved Apple Pencil performance when "Apple Pencil Always Inks" is turned off. In this mode, Apple Pencil will now act like a "finger" and no longer require "long taps" to select items.

We've also improved search on local drives and within Google drives and added a warning icon when too many files are open.

You'll now notice an alert at the top of your screen when a lot of documents are open to prompt you to close unused documents to improve performance.

Ratings and Reviews

4.6 out of 5
924 Ratings

924 Ratings

iAnnotate fan ,

Best iPad app for academics

I use this to review journal articles, papers, student assignments and other University documents. It's even better than old fashioned paper. It even allows a page marker, so you can easily return to your spot after looking up the references at the end of a paper.

Developer Response ,

Thanks for writing in! We're so glad that the app is helping to make your workflow more efficient!

North of Zero ,

Long time users. Would like to see certain features added.

I use the application extensively. Main criticism is the wrist-guard approach when using a stylus. It would be nice to suppress drawing with anything but the stylus when a tool is active, so fingers can be used to navigate and not mistakenly annotating the document when signing etc. from wrist placement.

Developer Response ,

Hi there, so sorry for the late reply. You can still have a document open in two tabs. Please reach out to to learn more!

Nargesyyy ,

Keeps crashing recently!

This was a great app and I’ve been using it for years now …but recently crashes every time I use search:(

App Privacy

The developer, Branchfire, Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer's privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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