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 1,786 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.



  • Useful and easy to use

    By Hgvjfffsg
    Bought an Apple Pencil and then had nothing to use with it! This app is exactly what I need - being able to annotate PDFs I have downloaded is great and extremely useful.
  • Competent daily driver for PDF annotating

    By MoonlitWorld
    This is still the best PDF viewer, annotator, editor and file manager on iOS. I'll only list some points out of my expectations. Pros: 1. AirPlay presentation functions are great. It supports direct mirroring, single page presentation without toolbars and etc. 2. Merger and splitter are very convenient. You can merge multiple PDFs in the order that you selected them by one tap. You can extract a few pages from a PDF file to a separate PDF file. 3. Fully functional file manager and ZIP manager. You can use a as a storage location for all types of files. 4. Dropbox sync is super solid. Cons: 1. Can't rendering a scanned and OCRed PDF file reliably. Sometimes the text becomes blurry after some scrolling. 2. The inking of pen tools could improve. It's not bad but not as smooth as some other remote competitors like GoodNotes.
  • Great app but it may be better value to get the PDF editing version.

    By The_G_Daddy
    This is a good app, well made and works seamlessly with other Readdle Inc. apps. If all you wish to do is create your own PDF’s or annotate and highlight on an existing PDF, this is the app for you. However if you want or need to edit PDF you need to buy the PDF editing version first, or pay for an in app purchase.
  • Quality app, great customer support. Recommended.

    By Panpanus
    Excellent functionality and UI. Good filing system and access to iCloud and other cloud base storage. All in all, this is a quality app with thoughtful design. Commendable and friendly support that responds within hours and sometimes within minutes. With the quality of the app and Support’s help, I feel that this app and the other apps in the bundle can be used for mission critical tasks.
  • Finally!

    By Murphy James
    Just what I’ve been waiting for. Absolutely superb.
  • irate

    By Smythey
    Very disappointed to see random pop-ups appearing that ask to give a 5 star review. And now large banners have started appearing in the file list view advertising other apps.
  • The Whole Package Great

    By Mr Clob
    I have purchased the whole package based on other reviews and previously using Readdle products on other Apple Products I own. The capabilities within this package open every possibility for me. Having tried other apps by other developers I have found this to be the most useful and without doubt the best value for money. The support is great and quick. The only improvement I would like to see is ‘Double Side Printing’ and ‘Print Quality Adjustment’ adjustments on the Printer Pro app. This would do it all for me. I totally recommend this product.

    By Jj 88
    I've had this app for a few years now and it holds all my files But for some reason, recently it just keeps crashing and frustrates the hell out of me. I can't delete the app and re install as I will lose all my files which I also think there should be a way to save the files/back up in such a case.
  • It’s an excellent app up to a point...

    By CurlyClare
    I first bought this for use on a Mac after an original Pages doc was lost (along with the external hdd it was stored on). The pdf needed editing and updating and without time to create it all again from scratch I found this app. It saved my sanity (mostly see below). It allows text editing, deleting, copying and pasting (though doesn’t paste in style including font, size, or colour which is frustrating if you’re up against the clock). There’s no control over tabs or leading so the best advice is never have your hdds lost/stolen and backup to at least three different places.
  • Latest update crashes

    By Poohey Bear
    After latest update I cannot open any files. Used to be great but now totally useless.😡