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PDF Expert 5 - Fill forms, annotate PDFs, sign documents

By Readdle


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PDF Expert 5 is a must-have app for anyone who reads, annotates or edits PDF documents on iPad or iPhone. It allows you to mark up documents with highlights and handwriting, insert text and stamps, sign and even merge PDFs. Moreover, PDF Expert is the best choice for filling out PDF forms right on your iPad and iPhone.

“PDF Expert is one of my must-have iPad apps and a
desktop-class PDF reader” -

“I was blown away at how easy the app is to use” - MakeUseOf.

“The best app for managing, editing, and reading PDFs on your iPad” - The Sweet Setup.

You can open various file formats such as iWork, MS Office, Power Point, text files, images, even music and video files, etc. Get these files from desktop computers, email attachments, documents on Dropbox, OneDrive, GoogleDocs and “Open in" from other applications.

PDF Expert 5 provides the best experience for filling out PDF forms. Text fields, checkboxes, radio buttons and other form elements work as you expect and all the information you enter is saved within the form. Even complex interactive forms with Javascript work impressively well.

With PDF Expert 5 you can:

- Highlight Text -
Mark important things in books, journals or documents you want to review.

- Fill Forms -
Work with static PDF forms created in Adobe Acrobat.

- Create Notes -
Add comments to the texts you read.

- Draw with your finger-
Use it to make handwritten notes or highlight text in scanned books.

- Make Bookmarks -
Create table of contents for your document right on iPad and iPhone.

- Review Documents -
Mark up errors and place special emphasis on important sentences.

- Sign Contracts -
Additional types of PDF annotations are coming in the next updates.

Other things PDF Expert 5 lets you do:

+ Read PDFs with ease
PDF Expert has one of the best PDF viewers for iPad and iPhone. It opens large files, supports full text search, handles PDF links and outlines, opens password-protected documents and extracts text from PDFs.

+ Copy Files From Mac or PC via Wi-Fi and USB
Use iTunes file sharing to transfer files directly to your iPad or iPhone via USB cable. As an alternative connect your iOS device running PDF Expert via Wi-Fi and operate it like a wireless flash drive. No additional software is required.

+ Save Email Attachments
Open attachments directly from the Mail app. Also, you can open PDF files from any other application on the iPad or iPhone via "Open In..." dialogue.

+ Sync your files with various cloud services
PDF Expert allows you to download and upload files from Dropbox, OneDrive, Google Drive and other services. If you use more than one cloud storage, PDF Expert 5 will handle all of them.

+ Share Files With Your Friends
Email files directly from PDF Expert 5 with all annotations you made.

+ Protect Documents with Password and Encryption
Restrict access to PDF Expert 5 with a password to protect your files from unauthorized reading. Enable iOS Data Protection to encrypt everything while your iPad or iPhone is not in use.

+ Text To Speech
Now you can listen to e-books or audio files on the road or when you don’t feel like reading. PDF Expert 5 intelligently processes PDF books and uses iOS7 text- to-speech API to read them aloud.

And one more thing:

• Review Mode •
The Review Mode allows you to mark up PDF documents in a very special way. Just tap anywhere on the text where you need changes and correct it in the text editor. The text that you delete is marked as removed while everything you add is shown as new text in different colors. Currently available only on iPad.

NOTE: We cannot reply you in comments. If you have any comments or issues, please contact us directly at

What's New in Version 5.2.3

- Sync with OneDrive has been polished.
- Fixed an issue with flattening multiple documents.
- Minor Pen/Markers fixes
- General performance and stability improvements.


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Customer Reviews

Graduate Student Review

This application is amazing. I'm a student in pursuit of a Doctorate Degree in Physical Therapy and am considered a very tech-savvy individual. I've used many applications throughout my life and this one is by far one of the best I've found. It has an easy to use interface and allows for integration of a vast variety of different type of media files. The app links directly with any of your cloud-based storage services, such as Dropbox or Google Drive, and allows you to be able to move files from one to another, which I use to be able to maximize my space between the different services. The application also allows you view or listen to media files right in the app, draw on pdf files, send /share to others, and so much more. I would definitely recommend this app to anyone who is a student or has to use a variety of different media formats in their occupation.

Very worthwhile purchase. Totally recommend!

First off I would like to address all the complaints about customer service and business practices. I am a user of both the version 4 and have purchased this version. I have never had my computer company, nor anything else just had me a completely new version and the price this app is compared to the "freeware" the lower cost apps which have signature limits, this has complete freedom with no limits. I wrote customer service both complaining about software for 4 not working as well as for why I have to pay for 5 and got answers every time that addressed exactly why and what in clear, honest and respectful manner.
The day I transferred all my documents to the new version , very thing went smoothly. I sign documents on the fly all the time and this app makes professional, appearance as well as legal signatures ossicle.

Pretty good; somewhat problematic

This is an extremely great app for organizing PDFs. iCloud Drive support is fantastic and has had zero bugs. I am overwhelmed by the sheer number of services this one app will sync with, as well as the quality in production of every aspect of this app. I haven't experienced a single bug using it for over a month for 6-7 hours a day.

However, there is a feature that leaves a LOT to be desired, and that is highlighting/underlining. If I'm trying to highlight a document using the built-in tool, there are three outcomes: 1. It works perfectly, which only happens for documents that are PDF conversions of essentially RTF documents; 2. It doesn't work at all, which is the case of image PDFs; or 3. (Most commonly) it looks horrible.

The problem is that the built-in highlighting tool isn't very smart. It relies on the text layout of the PDF in order to decide what gets highlighted, and PDFs that include unusual characters or had their text interpreted by a program while scanning frequently have bad layouts.

I wouldn't hold this against PDF Expert except that I've seen it done much better. PDFPen, for instance, has a highlighting tool that can highlight image files or test PDFs equally well. Rather than highlighting character-by-character, it highlights based on text limits, resulting in a much more professional-looking highlight job.

Revise the highlighting feature and this app would be an easy 5 stars!

PDF Expert 5 - Fill forms, annotate PDFs, sign documents
View In iTunes
This app is designed for both iPhone and iPad
  • $9.99
  • Category: Productivity
  • Updated: Feb 09, 2015
  • Version: 5.2.3
  • Size: 66.1 MB
  • Languages: English, German
  • Seller: Igor Zhadanov

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5, iPhone 6, and iPhone 6 Plus.

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