PDF Expert by Readdle

PDF Expert by Readdle

By Readdle Inc.

  • Category: Productivity
  • Release Date: 2013-12-03
  • Current Version: 6.1.10
  • Adult Rating: 4+
  • File Size: 135.89 MB
  • Developer: Readdle Inc.
  • Compatibility: Android, iOS 10.0
Score: 4.5
From 16,440 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.



  • Great App

    By Mswombat21
    This App is easy to use and I can organize all my documents.
  • Couldn’t Live Without It

    By Clurichaun
    Have used for years and don't even feel the need to reach out to other apps when this app does it all I need it to do and more. For people that would like to be able to store a substantial, sequential, unlimited amount of specific files with unlimited subfiles in iCloud, and on the iPhone or iPad, while having access to everything, no matter where you are, this is great. There is cloud storage of your preference as well as the ability to keep needed files outside the cloud in case access to the internet is not available. Also, as a student it has become an indispensable tool I can open up my research literature in and basically mark up points of interest, capture quotes and leave impromptu notes, that in all probability will become key points in my finished piece. As an artist and writer, again I can store everything here and open wherever I choose. So easy to use even without instruction (although this is a great manual included) as is the same company's Scanner Pro, Spark and Printer Pro and PDF Converter. Sometimes I must share via Dropbox And I I do not have issues uploading to it as I had in the distant past. I use this app everyday on mostly my iPhone 8 and iPad Pros but also the Mac version, so I feel confident always, when need to produce a piece of information, homework, research material, music, pictures and more. It basically makes the cloud a friendly place, where everything has a set place that is always accessible. This is one is of those apps that should be a standard on any device, for everyone, especially students professionals and those that need a highly organisable, easy to use system with an abundance of features. The Mac makes having the iPhone, iPad and Mac apps the complete package. The Editing on all of them now is flawless. I was thinking of buying a certain note App for the Mac for annotation ability but PDF Expert is The ultimate in Annotating and a fast, reliable reader. You can highlight fast and with precision, take and leave notes, write on the actual page, move, photos from or replace photos from the PDFs and the text, so,can essentially freshen up or create a new document, sign documents and use the many tools to do whatever markups you prefer. I am not really sure what more this or any app could do better. And the drag and drop feature is awesome and makes doing things so much faster, although it is just as easy to batch duplicate files and move wherever one needs them. You don’t need the entire suite of tools from Readdle but they are quality, as well and create a reliable efficient workflow paired with PDF Expert.
  • Excellent PDF app

    By derf renlim
    Works great,love the fact that you can sign documents with your custom signature. Keep the updates coming.Thx
  • Great app

    By Chanroth
    This app is so great. Thank you!
  • Amazing App

    By Tapnwolfe
    I have everything in my PDF Expert!! Annotations are easy and there are tons of them you can do! It travels well across my devices! I can’t even imagine going back to Adobe or other PDF apps that seem to have NO functionality in comparison. I can save all my PDFs there and keep them on my device or in the cloud!! When other apps don’t do things, I wonder why all apps aren’t as wonderful as PDF Expert. I also bought the Scanner Pro from these developers. Changed my life!!! Saves right to my Dropbox!! Serious time saver! You won’t be disappointed with this app!
  • O.5 pixel pen

    By Dr. Krane
    0.5 pixel pens for annotating are gone please fix
  • Fantastic app

    By rslongboarder
    I got this app for free one day randomly years ago, and it hasn’t failed me since.
  • Two-page or two-document view needed!

    By quisnam se nominaret
    An otherwise great app whose usefulness, for me, is decimated by its lack of support for a two-page view or a two-document view. FIX THIS, READDLE.
  • Junk

    By Injektor
    Don't do as what is suppose to do. Junk. Can't edit text at all
  • ratings nag

    By customer18492
    The ratings nag pops up just when you want to get work done. Try having some respect for your paying customers and stop your endless nagging and solicitation for approval after your customer has paid you.