PDF Expert by Readdle

PDF Expert by Readdle

By Readdle Inc.

  • Category: Productivity
  • Release Date: 2013-12-03
  • Current Version: 6.4.1
  • Adult Rating: 4+
  • File Size: 138.17 MB
  • Developer: Readdle Inc.
  • Compatibility: Requires iOS 10.0 or later.
Score: 4.5
From 25,462 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.



  • PDF Expert

    By nspktor
    Great App that works with all my work. That I can save tot h cloud is a great feature. Thx.
  • From best to worst

    By Paniusk
    This has been my favorite app since I discovered it, and recommended it to many people. But, now it became a nightmare. It keeps creating a second file (which are corrupted) for most of my files. Every time I open the app, files on iCloud have to be redownloaded again, this never happened before. And when trying to download them the app crashes. And it does so constantly. There is a constant shuffling of files, appearing, disappearing and then appearing, but only to be downloaded again. This has made it very difficult to use the app. Also, open documents don’t stay open as they used to. When you look for them on the open tabs on top they are not there anymore. I was counting on an update that would fix these bugs, but it seems that it’s only getting worse. I rearely write reviews, but it seems that reviews are helpful to know what userers are experiencing with the app. I hope these issues are fixed soon so that I can enjoy the great app PDF Expert used to be.
  • 9.99 for the app then another 9.99 to use the edit feature!

    By Fergie501
    I bought this app believing I was going to be able to edit PDF documents. Not happy that they want another 10.00 for the features I thought I just bought
  • Money grabbing developers.

    By Jatisimo
    I bought this app 2 years ago for $9.99. I used it only once, but now that I need to use it again, it is asking me to upgrade it and asking for $9.99 one more time. I have contacted Apple support. They told me that the developer had changed the app and there was nothing they could do. They too agree that it was not fair. They recommended me to write a review for the developer, so here it is...
  • A must have

    By Dulce CaraBella
    I use this app daily. Love this app. As of today, the app is not loading my documents, the loading wheel is spinning but I’m not able to see or select anything. Can support please look into this issue? Thank you
  • Just what I needed to organize

    By Brazilian StairKing
    I bought this app and I now have my chosen files on all three of my devices iPhone, iPad, MacBookPro. I can mark them up, annotate and highlight which makes learning and internalization better.

  • Best app I have!

    By Dod_Father
    I originally got the iPad with a bunch of ideas in mind, and I still use it to browse the web and check my email and whatnot... But PDF Expert is the workhorse and major reason that I keep my iPad with me. I use it to read large and small PDFs (textbooks/journals) and it is quick and reliable with both. I love this app for highlighting and making notes of important content. I’ve used it to fill out rental applications, job applications, and other PDFs numerous times. It has a neat signature feature to “sign” documents which allows me to get it right back to the sender while I’m out and about. It is just so convenient to have on both my iPhone and iPad. I finally bit the bullet and got it for my MacBook too (and no longer use Preview), because I love this app. Best part: iCloud file management built right in (and Google Drive, OneDrive, etc., but I like the ease of use with iCloud). I save files in the PDF Expert folder of iCloud, and all my devices (iPhone/iPad/MacBook) have the updated version ready to use. It’s truly the best app I have for my iPad. And I love it on iPhone too. And one last thing: Readdle is weirdly good about updating the product. I submitted a suggestion like two years ago and forgot about it. (FYI, it was the text reflow feature. I wanted them to include it on the iPad; it was already on the iPhone.) Out of the blue I got an email saying that it had been implemented and them thanking me for my feedback. It took a while to get there (it was a very minor suggestion, so I don’t blame them), but they kept track of it and took care of it for me!
  • Scripts!

    By DJV-10
    Greatest tool for production! All your notes complete with colored revision pages in one place. Plus shot lists, call sheets, yada all in open tabs. I should be getting a kickback for as many production peeps I’ve turned on to this app:)
  • Freezes on my IPhone 7

    By 408baked
    I love this program for how easy it is to use. I literally use it every day, pretty much all day for work. The only problem I have which is huge, is that sometimes the app freezes up on me. From that point on, I can use all the other functions of the phone, but the app stays completely frozen. The only way to fix it is to do a soft reset on my phone which I do sometimes 5 times a day. I try to keep the app updated to latest version. Not sure why this is happening.