PDF Expert by Readdle

PDF Expert by Readdle

By Readdle Inc.

  • Category: Productivity
  • Release Date: 2013-12-03
  • Current Version: 6.6.13
  • Adult Rating: 4+
  • File Size: 148.65 MB
  • Developer: Readdle Inc.
  • Compatibility: Requires iOS 10.0 or later.
Score: 4.5
From 34,212 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.



  • My only wish is allowing text size under 6pt

    By qqoripyo
    Otherwise perfect, If only I could type in text size I want...
  • Can't convert into PDFs

    By ORHobbes
    This should be a 5 star app. But it cannot convert Office files into a PDF. They make you download a whole separate app for another $6 to do that. Why do we need a second app just to convert the file? Why wouldn't you just make that a in app purchase option in PDF Expert so we can have one app to do everything? It just clutters up the phone to make us have a separate app for each function.
  • Really like it, but only one thing that’s getting on my nerve.

    By kairan1108
    I have been using this app for a very long time, mostly for studying. It is a really good app, and I would have not been able to study well without this app. The only thing that I’m complaining of is its occasional crashing. I highlighted sentences and made many notes, and suddenly the app crashes, erasing all of the highlights And notes I have made for several mintues ago. If that is a one time event, no big deal. Unfortunately, I think the app is crashing once per approximatley 30 minutes of usage. It is a very good app, and I will continue to use it, but I really hope this problem could be fixed.
  • Had to spend more for pro version

    By kgdocco
    I purchased the 3 pack bundle in order to edit text in a pdf file and figured the printing and converter were extras I may or may not use, but were a good price. Then, however, I discovered that I couldn’t edit text without purchasing the PRO version for almost the same amount as the bundle. So far, PRO app does what I need, but very disappointed at pricing. As long as software is as robust as other reviewers say, it will still be a good purchase. Just hope I don’t find any other hidden fees.
  • E-Docs

    By Neen12451
    As a person who has to fill out e-docs on a regular basis in the field this program is simply invaluable. I really can’t think of one issue I’ve ever had with it. It does EVERYTHING I need it to do.
  • Can't connect to Dropbox business folders

    By bman3346
    This app has great annotation abilities but I am flabbergasted that it can't open files in Dropbox business accounts. Can't you make this a priority for this of us using your app for business?
  • So disappointing

    By Frustruated student
    It keeps creating a second/third/fourth file instead of replacing the original file with the annotated one. 80% of the times it creates a second file, and 20% of the times it covers the original version. I don’t know why. I haven’t found the pattern yet. I’m in a professional program and I use all sorts of annotation apps all the time for note-taking. I’ve just spent 3 hours on one of my slides sets, and then I closed the tab like I usually do, and expect that all the changes would be synced, but, nope, not even a duplicated file, not even in my recent files. It never happened to any of my other annotation apps. I even upgraded to the pro version. So disappointing.
  • Bad for pdf file > 90 Mb

    By Quoc29
    My pdf file is 90Mb. I usually take note and annotate in this file. After couple days, some pages of my pdf file turn to blank page, some pages don’t show up the note or highlight.
  • Use to be great.. UPDATE

    By Stephmc1227
    UPDATE: For a while, this app was working great again. No freezes, no problems at all. Within the last couple of days, it has started freezing again. It is so frustrating. I have used this app for years and loved it. But if the freezing continues, I will be looking for a different, similar app to use instead. PLEASE FIX... AGAIN Until this most recent update. I have used this app for years.. and have loved it. Probably my most used app. But since the recent update it is now constantly freezing and crashing. Please fix ASAP
  • I need a refund! Or you fix it!

    By mad customer who paid for this
    This app keeps crashing for days. I can’t believe it has so many good reviews. I like the design, and it was good for 2 days, and after that I can’t use it!