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 16,661 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 well!

    By aevaughn
    I use this primarily to edit PDFs (grading papers and making keys). It does these very well and I’ve been pleased with this app’s performance.
  • Annoying default

    By Brathna
    I love this app. I annotate PDFs all the time. I’m a patent clerk and prosecute patents, so I review patents frequently. I will have many PDFs open in tabs and switch back and forth, marking up the documents. However, one thing that annoys me so much that I had to write this review is the fact that the app defaults to your finger for use with the annotation tools, such as the marker. I use an Apple Pencil for that. I want to use the pencil to mark up and my finger to scroll. Open a document, tap on the marker to begin writing, use your finger to scroll the page, it will instead write. I have to use the pencil first, then I can use my finger to scroll. Press on the green check mark to close the marker, tap on the marker again, and I again have to use the pencil first for the app to switch over to the pencil. Or, use the zoom tool and again I have to use the pencil first before I can scroll with my finger. This is very annoying and counterproductive. Every other app I use defaults to the pencil and allows my finger to scroll. Please, if there’s a pencil present, make the pencil the default or give me an option.
  • Better than Docusign!

    By Top Real Estate Agent
    I love this app - as a Realtor it's indispensable. VERY user friendly. I love being able to edit text.
  • Save so much time

    By gshaner
    I have used PDF Expert for about 5 years. I have saved so much time using this app for work to edit,extract pages,sign off and email. I can add photos highlight or do anything needed to get my work in. Thank you for saving so much of my time.
  • Pretty awesome but...

    By AstroUrsa
    The only thing that bugs me is when I accidentally click back to the folder, I have to open any file to be able to see the pdf I was currently working on. I don’t know if it could mess up my annotations progress in anyway but I’m scared to find out. Plus it’s a bit awkward anyways. Also sometimes when note taking with the pen tool, it uses my finger to mark instead of my Apple pen which can be a bit obnoxious at times.
  • Fantastic

    By moori 1
    Wonderful App
  • PDF Expert Review (March 2018) COR

    By PilotBrain
    Really good/powerful app Some things I would like to see (most of them Good Reader app do it) 1) when typing: been able to add a background color right there 2) Customize your own toolbar or the menu when you press any text. 3) when reading a book, been able to see 2 pages (like an open book) 4) different symbols for the note and more colors 5) Been able to change the Size of “Underline” and “Strikeout” 6) been able to add margins and crop
  • Spam

    By TiredOfSpam,
    Despite having previously reviewed this app, I STILL receive constant pop-ups asking for reviews (after I have paid and reviewed). I will look for a better alternative despite the money spent.
  • Crash problems

    By ><
    Pretty good, but crashes a times too many.
  • This is app is great

    By lmsampson78
    This app, in conjunction with my Apple Pencil, have made things so much easier. I am able to take care of business when I don’t have access to a printer. I can fill out documents on the go. The only thing that I could ask for is if it would interact with dynamic pdf documents.