PDF Expert by Readdle

PDF Expert by Readdle

By Readdle Inc.

  • Category: Productivity
  • Release Date: 2013-12-03
  • Current Version: 6.3.0
  • Adult Rating: 4+
  • File Size: 129.06 MB
  • Developer: Readdle Inc.
  • Compatibility: Android, iOS 10.0
Score: 4.5
From 17,010 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.



  • Great

    By javybaby
  • Apple pencil still lacking

    By LEO BSB
    apple pencil support still lacking, it's not as smooth as other apps... they need to improve their software foe handwritten text.
  • Such a nice product

    By JerryJerryBao
    I have only used this for half a day and I am loving it. I use GoodNotes 4 for class note taking. I could mark PDFs in GoodNotes, but the functions were really limited. I love how in PDF expert I could easily highlight, underline, etc. Everything felt smooth and convenient. It made reading PDF much easier on iPad than a Mac. HOWEVER, there is room for improvement. The handwritten ink does not look natural at all (compared to the handwritten ink in GoodNotes 4). There is also a bug: sometimes the app failed to distinguish between my finger and my Apple Pencil, so when I scroll down using my finger, instead I get part of the PDF highlighted. That is REALLY ANNOYING.
  • Excelente

    By Hidekel7
    No hay palabras para describir esta aplicación. Gracias por esta herramienta tan útil y eficiente. Sin duda la mejor aplicación que se puede encontrar. Gracias por su gran trabajo.
  • Best of the Best

    By hypersmart
    Easy to read and manage PDF
  • Suggestions***

    By Prp-perapong
    Please improve the text highlight in other languages ​​that are adjacent to text, such as Thai languages.
  • Cannot upgrade to Pro within app after latest update

    By AcJc7691
    Just updated app. Now there is no option to upgrade to Pro to edit text. It Was there before the update. Please fix this issue. Clicking on Pro icon to purchase in App Store does nothing now. (Ability to purchase was there 5 min ago before update)
  • 求裁边

    By 北月海byh
  • Perfect.

    By PierceBradley
    This app is perfect. The team that is constantly updating and adding new features to the app is perfect. Seriously. If these guys ever sent me an email saying they were going out of business and needed donations to keep the app going, I would literally send $50 and immediately call every single one of my friends and family and compel them to buy the app and donate just so I never had to consider a future in which I would need to use another pdf app/program. Thank you for making it and maintaining it. If you’re reading and on the fence. Stop reading and buy it for iOS and especially for macOS. You’ll never look back
  • Open on all my devices every day

    By Joel D. Arnold
    This is one of the most useful apps I have. The feature set is extremely strong and the cross device integration is excellent. The most recent upgrade was one of the few things I wanted change about it and now they’ve taken care of that. If you work with PDFs you should get this app. Plain and simple. Actually, even if you don’t work for PDFs you should still consider it. There’s a good chance that you haven’t use them because it’s been such a pain in that with this great software you’ll start using them now. Furthermore, if you have an iPad Pro this app should come installed. It’s that good. I can promise it will be on your front page and you will be using it every day. Features I specially love: (1). The ability to easily drag and drop images to re-order or add to a PDF. (2) The ability to quickly and seamlessly move between devices. (3) The ease of annotating with an Apple Pencil, using highlight, various colors, opacity, and pencil width. It’s excellent. I always end reviews with suggestions for improvement. These guys have me stuck because it’s just that good. The only thing I can come up with is a full range of color selections for highlights and pen. In other words, a full color palette with infinite choices rather than the pre-selected colors they give now. That’s it. Thanks for the excellent app guys and your amazing work! Fantastic update.