PDF Expert by Readdle

PDF Expert by Readdle

By Readdle Inc.

  • Category: Productivity
  • Release Date: 2013-12-03
  • Current Version: 6.1.12
  • Adult Rating: 4+
  • File Size: 135.93 MB
  • Developer: Readdle Inc.
  • Compatibility: Requires iOS 10.0 or later.
Score: 4.5
From 16,782 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.



  • Works great on iPad 2

    By Hadikm
    Even though I use old iPad 2 for reading my medical school textbooks and even taking notes, highlighting and sound recording in a class, this app handles everything very well and works smooth. (Same as unlocked pdf editor on documents app of Readle)
  • I love it but...

    By KateCM
    It crashes too often and I want a PC version but I do love it!!! It does everything I need and it’s a great interface.
  • Great Service report tool

    By Ram the Fireplace Man
    Use it to write service reports, with a pre populated form, Including pictures. Never lose a piece of paper again, and everyone involved gets an emailed copy.
  • Excellent product that really delivers!

    By DeathtotheBolsheveiks
    I use it everyday and it is an indispensable business tool.
  • Awesome for iPad.

    By Smordred
    This is the best possible pdf reader/editor available for iOS. Some butt-hurt people got mad when readdle silently roll a paid upgrade and they got revenge by giving the app 1star, that’s why the score is around 4.1, it should easily be 4.8 stars once you consider what you can do with the app. Well worth the price.
  • Great

    By Mawedeh
    It’s a great Pdf reader just I really need two-page view.
  • By FAR the best pdf editor.

    By bobdokey
    I use Spark (incredible email app, also by Readdle) and marking up PDF’s with PDF Expert from Spark is the easiest thing on earth. Used Readdle for years and so far, only many high praises to sing. They always update, so if a feature you don’t see here is requested, they usually add the feature by the next update!! Thanks Readdle.
  • Love it!

    By Skratzu
    As a PhD student with a lot of reading, I have found PDF Expert to be invaluable. The ability to take a publisher’s PDF and annotate it has helped me complete papers and chapters in my dissertation. PDF Expert works well with Apple Pencil and the iPad Pro, easily detecting the difference between me using my finger and using the Pencil. It also works well with iCloud Drive and Dropbox. I keep having to reconnect it to OneDrive for Business. Based on experience using OneDrive with other services, I’m assuming that this issue is more Microsoft’s problem than PDF Expert’s. I love every Readdle product that I have tried. I use Calendars 5 as well. I recommend reviewing the rest of their product catalog if you like PDF Expert. There are some real gems in there. They also offer app bundles through the App Store.
  • Great tool

    By Pawel2606
    It works for me
  • excellent pdf app

    By CurtisHarrison
    Absolutely fantastic app for editing, and marking up pdf’s. Makes the Apple Pencil a must have. The two together become an indispensable tool. I now read my books as pdf’s because of the abilities of this app. In my opinion, it’s one of the best apps on my iPad.