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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
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 5.3.2

- stability and performance improvements


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Customer Reviews

Leaving the Paper Docs Behind!

I really like this app because it goes way beyond being just a .pdf reader. I was looking for something to easily open and annotate / highlight important documents while mobile. I used this at a trade show recently and it did the job very well and was easy to learn and use. No more making notes on paper documents (show schedules, floor maps, etc.) and stuffing them in my pockets and then misplacing them. It was all just available to me on my phone and tablet. Very well laid out and organized. I am very happy. So happy I plan to try the printer and scanner products by this company as well.

PS: If you have documents on your desktop computer you want to carry with you but they are not in .pdf form, you can make a .pdf by "printing" them to Nitro Pro or similar software on the desktop - works very well - especially for web docs. Also some word processors and browsers will create .pdf's of your documents as well. Just send them in an email attachment to yourself, open on your phone or tablet with the PDF Expert app and you are all set. I really love being able to leave the paper docs at home, but still be able to highlight and annotate.

Bottom line . . . PDF Expert gets a 5 star yea! from me.

Forced paid upgrade

I've been using PDF expert 4 for a while now, and thought it was great. Then I upgraded to IOS 8, and it pretty much stopped working. Navigating became a sloppy mess, and I could no longer access many of my documents. I learned this is because of the release of pdf expert 5, but it irks me that 4 was made unusable and I would now have to pay for another app.

But PDF expert was great, and when I saw on readdle's website that my PDF expert 4 files would automatically move to the new version, I figured this would be a good purchase to make. Nope, my files were not moved over as promised, and on the PDF expert guide, it says the only way to move the files over is to open them in PDF expert 5 from the old app, but I can no longer even access the files using the old one. They broke the old app to force me to get the new one, and now I've lost a lot of the PDF files I had, with important notes to my work. This really screwed me over, so despite the cool features of the app, I cannot recommend using it in case they pull a stunt like this again, look for another app which is more stable and trustworthy.

A caveat to 5⭐️

This PDF App has all the others I've tried beat, hands down! Since I own the desktop Acrobat Pro version, I wanted something pretty robust for mobile. Readdle has done a nice job of integrating popular functions such as highlighting and notating; very useful for research, study or work collaborations.

My only caveat was the forced upgrade that others have pointed out. While I was able to migrate data without too much effort, I felt existing customers could have been offered 'upgrade pricing.' Even without it, I found that the app was too useful not to keep and upgrade. Prior to the next iteration, however, Readdle needs to understand the value of retaining their loyal fan base and employ some mitigating factors.

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: 5.3.2
  • Size: 71.6 MB
  • Languages: English, French, German, Italian, Japanese, Portuguese, Russian, Simplified Chinese, Spanish
  • Seller:

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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