PDF Expert by Readdle

PDF Expert by Readdle

By Readdle Inc.

  • Category: Productivity
  • Release Date: 2013-12-03
  • Current Version: 6.4
  • Adult Rating: 4+
  • File Size: 138.10 MB
  • Developer: Readdle Inc.
  • Compatibility: Requires iOS 10.0 or later.
Score: 4.5
From 21,857 Ratings


PDF Expert 6 is an essential app for anyone who reads, highlights, signs and fills out PDFs on their iPhone and iPad. With an additional in-app purchase PDF Expert 6 acquires the unique superpower to edit existing PDF text, replace images and hide sensitive data. “PDF Expert is one of my must-have iPad apps and a desktop-class PDF reader”. – MacStories.net “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 *** WITH PDF EXPERT 6 YOU CAN *** HIGHLIGHT AND REVIEW PDFS • Mark important information in books, journals or documents with the first class annotation tools: highlight, underline, strikethrough and others. • Insert predesigned stamps such as Approved, Not Approved, Confidential and more. • Create diagrams and schemes using shapes such as arrows, circles or rectangles. FILL FORMS • Work with static PDF forms created in Adobe Acrobat. • Fill out any PDF forms with interactive fields such as text fields, checkboxes and radio buttons. SIGN DOCUMENTS • Use e-signatures to sign contracts and agreements on the go. • Sign documents with signatures synchronized across all your devices: Mac, iPhone, iPad. DRAW WITH YOUR FINGER OR APPLE PENCIL • Draw with your finger or Apple Pencil to make handwritten notes or highlight text in scanned books. EDIT OUTLINES • Edit outlines in a few taps to structure your data and for better navigate through the file. PROTECT CONTENT WITH PASSWORD AND ENCRYPTION • Restrict access to PDF Expert with a password. • Protect your files from unauthorized reading with a password. • Enable iOS Data Protection to encrypt everything while your iPad or iPhone is not in use. WORK IN THE CLOUD • Connect to other document storage providers like Dropbox, iCloud Drive, Box, OneDrive, Google Drive etc. Work with files right in the storage and all edits will be saved there without downloading the document. • Enable 2-way sync with storages to provide the continuous work with documents among all devices. CREATE NOTES • Add comments to the texts you read using sticky notes and drawing tools. MAKE BOOKMARKS • Make Bookmarks when it comes to intuitive navigation through PDF files. READ PDFs WITH EASE • Quickly open PDF documents from email, the web, or any app that supports “Open In…” • Enable full text search, scroll, zoom in and out. • Choose Single Page or Continuous scroll mode. • Use Text to Speech feature to hear the selected text read out loud. *** WITH PRO FEATURES OF IN-APP PURCHASE YOU CAN*** With additional in-app purchase you can have the unique superpower that allows you to edit PDFs. New features come as an additional in-app purchase for pros. EDIT PDF TEXT • Edit or modify existing text. The font, size, and opacity of the original text are automatically detected, so you can make edits easily. EDIT PDF IMAGES • Easily add, replace and resize images in your PDFs. Or change a logo or a graph. PDF Expert will handle those edits easily. ADD LINKS • Now linking any part of the text to a different page or even a website is fast. Moreover, links can be added to the images. REDACT SENSITIVE DATA • Using the Redact feature you can permanently erase or hide any sensitive information in your PDFs. PDF Expert is also available in the Mac App Store. It has been voted “App of the Year Runner-up” by Apple.



  • Absolutely the Best PDF App out there

    By iggytx64
    Capability of saving to Cloud services and has great form fill capabilities with ability to easily email when completed. The app has nice array of annotation tools and recognizes links and keeps them functioning. Worth the $$
  • Lots of money invested on this, distorted results

    By Peelage
    It’s amazing to me that in 2018, there still is not a decent PDF reader out there. I’ve been with this one for quite some time, but it has been worthless to me for the last few months. I start a lot of PDF files on my MacBook, then I carry that over to my iPad Pro with pencil for signatures and handwritten entry. Every single pdf I’ve started on my Mac is distorted on my iPad, making dozens of PDF files worthless, or in my case, a few extra hours of adjusting every single text box to fix the issue. For an expensive product this should not happen on a non-beta release. To make matters worse, two updates have gone by since I let support know about the issue and there is no fix. Adobe still reigns supreme (due to no competition) in the PDF world, and their cost isn’t nearly as much for pro features as this app claims to have but does not. If you’re a professional looking for quality, accuracy annotating, look elsewhere. This app falls tremendously short, still. I had high hopes.
  • I’ve been using since the beginning

    By Wayne's world of waynes
    I’ve been using this app since it first came out. It’s pretty much the only app that I will use for PDF’s. It really is the best app that Apple has in the market.
  • Work and personal use.

    By Tio Guero
    I generate inspection reports daily. This is a useful tool for my reports as well as saving plan sheets that are relevant to a particular location or current work. I am able to mark up plan sheets to show end of day progress. I back up my reports on my device as well as utilizing cloud based back up. I also use this app for my personal forms and paper work.
  • Working well in iOS 11.3.1

    By framework4
    Very useful, smoothly functioning app. I use it, on a daily basis, on an iPad Air 1, an iPad Mini 2 and an iPhone SE. Updated my review. Last year with the switch to iOS 11 there was a BRIEF period where it was slow.
  • Great app! Reliable and syncs with Google Drive

    By fmar90
    I really needed something that had easy syncing capabilities with Google Drive and this app does that flawlessly and seamlessly. One thing I would like to see is the addition of more highlighter colors beyond the yellow one.
  • My Favorite

    By pspeterson
    This app is my favorite and most useful. Each update makes the app better.
  • Review ☹️

    By big d *999
    I don’t like the way the pdf works in this version. It was better with the version were you would write without the boxes. It makes it more difficult to copy and paste as well as drag it in order to place it on the line in my doc. You made it very difficult for. I may have to find a different app!
  • Works the best of all l have tried.

    By Jc senior
    Works the best of all that I have tried and I downloaded a bunch. This is the only one that I use.
  • Too many open pages

    By Jbarton80
    This app works great for work, but it keeps every page open that you use until the app starts to slow down. It’d be nice if there was a limit on the number of open pages you can have to prevent this from happening.