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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 5 is the best choice for filling out PDF forms right on your iPad and iPhone.

“PDF Expert 5 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, PowerPoint, 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 Documents
Use digital signatures to sign contracts and agreements on the go.

Other things PDF Expert 5 lets you do:

+ Read PDFs with ease
PDF Expert 5 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 5 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 5 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 (only on iPad)
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 iOS 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 5.6.1

**Apple Pencil Support**
Take full advantage of technology that makes writing on documents natural and quick as writing on a sheet of paper. PDF Expert now also fully supports the new iPad Pro 9.7.

**Introducing Readdle Transfer**
Start working on a document on iPhone/iPad and seamlessly transfer it to your Mac. Or vice versa. PDF Expert saves your time and makes file transfer fast and easy. Enjoy consistent experience across all your devices. Anywhere.

Please, spend a minute and leave a quick review in the App Store. It really helps others make a better decision before downloading PDF Expert.


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Customer Reviews

Excellent App!

I use this every day for my work. Works really, really well. There are probably no perfect apps, but this one pretty much delivers on every level you could want. You can use it as a stand-along app, set it up to synch with Dropbox, etc. Off hand, the only thing I wish it could do is allow me to more quickly change font size by typing in the exact font size I want to use and also, allowing me to quickly go to super large font. I use it for both legal agreements - where the font size tends to all be 10 to 16 in size - and to annotate PDFs that were made from photos. Since the PDFs of photos are much larger documents data-wise, a word using a 16 font size character, which would look plenty large on a text document, looks tiny if I've converted a photo to a PDF. Actually, there is one more thing. I wish that it were easier to create a circle and place it, for the purpose of highlighting a particular feature in a photograph, and I also wish one could easily place a default arrow - not draw the arrow, have an arrow be the default shape that gets placed on the document - and then be able to resize that arrow as to length, thickness and where each end of that arrow would end. Still, all in all, it's a tremendous tool and quite logical to use. Great job making it!

Allowed Me To Go Paperless

I am a mediator, and need to review voluminous briefs and documents before each mediation, and have those materials with me while working. With this app, my assistant works remotely and loads all the documents sent to me electronically by email into the cloud section of the app, and I have them available to read, mark-up and annotate. I can do this while traveling, without carrying a huge briefcase full of paper. It has revolutionized the way I work. The only significant "glitch" I have found (which, in all fairness is flagged in the app), is that the universal search function slows down the app. That is probably more of a function of available wifi speed than the app. I just turned off the universal search (I need it only rarely) and the app is quick and works just fine. I can turn it back on if needed for a particular project.

Everything I have been looking for, spend the few bucks

I do a lot with pdf's, I'm a tinkerer by nature and I am a bit particular when it comes to documentation. I have been "auditioning" loads of pdf utilities to do various things, leaning towards something free. I have to say though, PDF Expert is so good, I have not, for a single second regretted spending a few dollars on this. In fact, I have been so happy with it, I replaced a few of my other utilities with other Readdle apps. I have even started preferring my iPad (w keyboard) for filling out pdf forms to doing it on the desktop (I am planning to take Readdle's desktop app for a spring but haven't yet).

This does a nice job of giving me a lot of power and control with a reasonably intuitive interface. There are some things that take some figuring, but nothing that truly stumped me. Balanced by the sheer amount of utility you get here, I would give the usability an A.

Integration with all of the services I have tried has been flawless (iCloud Drive mostly) and the documents that come out are high quality. You could argue that some of the markup tools aren't quite as attractive as, say, skitch, but what's here is excellent all the same.

I could not give this a stronger recommendation.

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:
  • Version: 5.6.1
  • Size: 73.0 MB
  • Languages: English, French, German, Italian, Japanese, Portuguese, Russian, Simplified Chinese, Spanish
  • Seller:

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.

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