PDF Expert by Readdle

PDF Expert by Readdle

By Readdle Inc.

  • Category: Productivity
  • Release Date: 2013-12-03
  • Current Version: 6.1.1
  • Adult Rating: 4+
  • File Size: 129.41 MB
  • Developer: Readdle Inc.
  • Compatibility: Requires iOS 9.0 or later.
Score: 4.5
From 15,776 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 Meriadoc
    I love this app. It’s a great and intuitive way to store, organise, and read documents everywhere on your device. The only complaint I have is the absence of reading modes (night, sepia, etc. ) on the iphone app. I don’t understand why it’s nit there but great app nonetheless.
  • use it... it's good app

    By Kewan93
    It's one of the best pdf apps and have a lot of free features
  • If you use pdf just buy it

    By Greg083
    That app it’s great, lets you modify the text and adore text if you want, it doesn’t lag and it’s easy to use
  • The best there is

    By olga the great
    Expensive and you have to pay twice (once for the iOS and once for the version on the Mac). Well worth it though. Seamlessly integrate with iPad pro and great for note taking.
  • Extortion

    By dizm4
    PDF Expert Pro is not even available on the App Store, but as soon as you buy the normal version it’s going to nag you for ten more dollars to upgrade. Deceptive move, Readdle.
  • Keeps bugging me for a review

    By bzigterman
    I wish it used the system-wide in-app review button, and that it would just stop bugging me for reviews in general.
  • It’s a workhorse for me

    By BCote NH
    I spend a lot of time at hearings preparing exhibits using this app. It helps keep me very productive.
  • Recently broken

    By RoscoePete
    The app is great except now highlighting text in a 2-column pdf article results in the article being treated like a one column highlight, highlighting the entire line across columns instead of the line within the column. Another issue is that using the text edit feature to results in the underlying formatting being displayed instead of the article content. These issues do not occur in other iOS pdf apps and preview on the Mac.
  • The best team

    By Ikys01
    They are the best team READLE, the truth I was surprised by so good infinite thanks. It could not expect less from the best, continue to be a leader in its field and success in their future. Thank you
  • Good app

    By Jannely
    Love this app! I tried using many different apps that would work for me personal and for school. This app is wonderful and I can keep track of all my articles and pdfs in one place. I just wish it would sync with my iPhone or be able to retrieve some articles online.