iAnnotate 4 — PDFs & more

iAnnotate 4 — PDFs & more

A better way to markup

8.8K ratings
365 reviews
#102 in paid Productivity
💼 Business
📊 Productivity
$9.99

Price history


Details

  • Released
  • Updated
  • May 3, 2016
  • April 14, 2026
iAnnotate 4 — PDFs & more screenshot #1 for iPhone
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iAnnotate 4 — PDFs & more screenshot #9 for iPhone
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About

This app allows users to read, annotate, and share various document types including PDFs, Office files, images, and web pages. It offers a wide range of annotation tools, cloud storage integration, and advanced features for efficient document management and markup.

Annotate PDFs, Office files, images, and web pages
Extensive annotation tools (pen, highlighter, typewriter, stamps)
Cloud storage integration (Box, Dropbox, Google Drive, OneDrive)
Web page markup and PDF conversion
Multi-document tabbed interface
Side-by-side document viewing
Flatten annotations for secure sharing
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What users say

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What's New in iAnnotate 4

4.10.6

April 14, 2026

This release includes a major update built with the latest tools for improved performance and reliability. Built with Xcode 26 for enhanced stability and compatibility Fixed an issue affecting the rendering of certain PDFs Resolved a bug related to autosave to ensure your work is preserved

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Charts

Top Paid

📊 102

Productivity

The app has maintained its position at 102 recently.

Last updated on July 20, 2026.

User reviews

Very useful

The app is really good. The only small point I have is that the tool bar at the side obscures part of the document when it is active. I use it to review pdf slide decks so this often hides the slide number which makes it more difficult to write up the review afterwards.

Loading Files to slow or not possible

I actually love this app and I use it a lot. However, it happens so often that when you need to source and open a file from iCloud the app just doesn’t show any of the file / folder structure and needs way too long if at all to open the document

Response from developer

Thanks so much for the feedback! We understand how frustrating the iCloud file picker experience can be when folders don’t load properly or documents take too long to open. Your feedback is genuinely helpful because it helps us prioritize where we can improve the app. We’ll investigate the iCloud issue further, and if you’re open to it, feel free to reach out to help@folia.com so our support team can gather more details and keep you updated. Thanks again for taking the time to share this with us.

INCONSISTENT AND CRASHES

I really wanted to like this app because the workflow is actually great when it works. Highlighting feels smooth and it’s easy to stay in a rhythm when prepping large documents.

But I’ve now run into the same issue multiple times and it’s a dealbreaker.

Everything looks consistent while I’m working in the app, but when I export to PDF, the highlight colors change in intensity. Some sections come out darker or lighter even though I used the exact same color. It ends up looking inconsistent and unprofessional, and there’s no way to catch it until after export.

On top of that, the app crashes when working on larger files, which makes the whole thing even more unreliable.

I use this for professional work where consistency matters, and I can’t risk something like this happening again. I didn’t have this issue with other apps, so it’s really disappointing.

If this gets fixed, I’d absolutely consider coming back to it. But right now, I can’t trust it
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Lento

Demora demais pra carregar e conectar com drives virtuais

Response from developer

Olá! Obrigado por nos informar sobre o seu problema. Por favor, entre em contato pelo e-mail help@folia.com; nossa equipe de suporte terá prazer em obter mais informações e prestar assistência adicional. Você não deveria estar enfrentando longos tempos de carregamento em sua conexão com a nuvem.

Fix the Conversion Bug!

Your app refuses to convert Docs from Canvas. It just sits and refuses to accept the file. It will convert them from Google Drive, but I should not have to download papers into another app just so that your software will finally do its job. I have reported the conversion bug problems for .docx files before, and your team gave a less than useful answer. Please actually fix the issue this time. I have used your app to grade for over a decade now, and I would rather use it than Speedgrader or other tools, but this problem cannot persist. If it does, I’ll have to go elsewhere. My students deserve better than consistently buggy software.
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Developer apps

User experience

🐞

Reported Bugs

5 issues

Disappearing annotations

Bug

Inability to open/save files offline

Bug

Blurry text rendering after OCR

Bug

Inconsistent page numbering

Bug

Unreliable Dropbox/cloud syncing

Bug

Requested Features

6 requests

Ability to copy/paste annotations

Feature

Eraser tool improvements

Feature

Customizable keyboard shortcuts

Feature

Dark mode option

Feature

Improved search functionality

Feature

Batch processing of annotations

Feature

FAQ

What can I do with iAnnotate?

iAnnotate allows you to read, annotate, and share PDFs, Microsoft Office files, images, and web pages. You can take notes, sign documents, highlight text, insert stamps, and much more using a variety of annotation tools.

What annotation tools are available?

The app offers a comprehensive set of tools including pen, highlighter, typewriter, stamp, underline, strikeout, shape annotations, notes, and more. You can customize your toolbars for quick access.

How much does iAnnotate cost?

iAnnotate is a paid application. The specific price can be found on its app store listing. There are no in-app purchases or advertisements mentioned.

What devices is iAnnotate compatible with?

iAnnotate is available for iPhone and iPad, including support for iPad Pro and multitasking features. It also offers Apple Pencil detection for enhanced usability on compatible devices.

How does iAnnotate handle cloud storage?

You can connect iAnnotate to popular cloud services like Box, Dropbox, Google Drive, and OneDrive (including OneDrive for Business). This allows you to access and save your documents directly from these platforms.