PDF Expert
  • Free download
  • Features
  • Contact us

    Related articles are not found.
    Contents
    • Using PDF Expert
      • Highlight, underline, and strikethrough text
      • Text comments, shapes, and pop-up notes
      • Insert stamps to PDFs
      • Customize text and annotation colors
      • Draw on a PDF file
      • Use stickers in PDF Expert for iOS
      • View, search, and remove annotations
      • Export Annotation Summary
      • Edit text in PDF files
      • Work with images in PDFs
      • Work with to-page and to-web links
      • Remove sensitive content
      • Supported forms and fields
      • Fill out PDF forms
      • Sign PDF documents
      • Insert stamps to PDFs
      • Enhance and adjust your scans
      • Convert scanned documents into text (OCR)
      • Scale and measure drawings
      • Polygon and polyline shapes
      • Red Line tools
      • Convert images, MS Office and iWork files to PDF
      • Export PDFs to other formats on Mac
      • Convert PDFs to images, Word, Excel, PowerPoint, Text files on iOS
      • Reading mode
      • Select your way to scroll pages
      • Enable the two-page view
      • Zooming modes in PDF Expert
      • Jump to a specific page
      • Bookmark pages
      • Create a table of contents in a PDF file
      • Turn on the Night or Sepia theme
      • Read PDF text out loud
      • Keep your device awake while reading
      • View two PDFs side by side
      • Create a new PDF file
      • Add, delete, and rearrange PDF pages
      • Rename files and folders
      • Recents and Favorites
      • Sort files and folders by name, date, and size
      • Password protect PDFs
      • Save the file as flatten
      • Reduce the PDF file size
      • Merge PDFs
      • View files using iTunes
      • Manage annotated pages
      • Move files and folders
      • Switch between the Grid and List views
      • Mark files and folders with color tags
      • Open a file in PDF Expert
      • Sync your PDF files through web clouds
      • Sync a folder from cloud storage
      • Connect to Mac or PC via SMB
      • Set up sync with Mac via SFTP
      • Time Capsule setup
      • Share files via the Share button
      • Transfer files between iOS device and desktop using Wi-Fi
      • Transfer files from Safari to PDF Expert for iOS
      • Transfer files between iPad and iPhone using WebDAV
      • Share text with other apps
      • Share files from cloud via a link
      • PDF Expert Widgets in iOS14
      • Turn on the Dark Mode
      • Work with tabs on your iPad
      • Customize the toolbar in PDF Expert for iOS
      • Create your own toolset in PDF Expert for iOS
      • Make PDF Expert your default PDF viewer on Mac
      • Open email attachments in PDF Expert
      • Keyboard Shortcuts
      • Share files from cloud via a link
      • Make presentations with PDF Expert and FaceTime
      • Supported Scripting in AcroForms (Adobe Acrobat forms)
      • Supported Scripting in XFA (LiveCycle Designer forms)
      • URL schemes
    • Troubleshooting
      • PDF Expert quits or doesn't open
      • PDF Expert freezes
      • All files in the app look blank on iOS device
      • Annotation tools do not work
      • Printing issues on Mac
      • Corrupted files
      • Sync issues
      • Restore accidentally deleted files
      • File cannot be opened
      • Annotations made in PDF Expert are not visible in a third-party app
      • File looks blurry
      • The search results look garbled (only Mac)
    • Billing & Subscription
      • How to get PDF Expert
      • Set up an account for cross-platform app usage
      • How to get PDF Expert Premium
      • Check and manage your subscription
      • How to cancel the free trial
      • The PDF Expert License FAQ
      • The “trial expired” message appears after a purchase
      • Is PDF Expert available on Windows?
      • The PDF Expert Billing FAQ
    • Contact us

    PDF Expert quits or doesn't open

    November 16th, 2020

    On some occasions, PDF Expert might have problems with performance resulting in crashes - here are some troubleshooting steps to try:

    Mac iOS

    First, please reboot your iPhone or your iPad.

    Another temporary solution would be the following:

    1. Try disabling iCloud for PDF Expert: open iOS settings >  iCloud > iCloud Drive > disable PDF Expert toggle.
    2. Enable the Airplane mode.

    Note: If you're unable to access your files in PDF Expert, you can access them in the Files app > PDF Expert location.  

    If none of it helps, please send us the crash logs by following the steps below - we're happy to help you personally. 

    1. Open the iOS Settings app > Privacy > scroll down and tap Analytics > Analytics data.
    2. Find the latest PDF Expert crash log and send it at rdsupport@readdle.com. In your message, describe the issue. In the subject line, type "PDF Expert crashes". We will get back to you as soon as we can.
    1. If the app can be launched, check if you're running the latest version in PDF Expert > Check for Updates or alternatively on your Mac App Store account > Updates.
    2. If the app crashes upon launch, restart the app by clicking Force Quit on the app's icon in the dock.

    If none of it helps, please send us the logs at rdsupport@readdle.com by following the steps below - we're happy to help you personally.

    1. Try to Force Quit the app using the Apple Menu > Force Quit > PDF Expert.
    2. Choose to generate the log for Apple.
    3. Copy the log using the CMD+A combination.
    4. Paste the log to the email body. In your message, also describe the issue. In the subject line, type "PDF Expert crashes".
    5. Click Send.

    Note: Since PDF Expert for Mac doesn't have a folder structure, all your files are safely stored on your computer and can be opened with any other PDF viewer app, for instance, the Preview app. 

    Read next: PDF Expert freezes
    Was this article helpful for you? Yes No
    If you’d like to get individual help from our Customer Support team, follow the steps on the Contact Us page.
    We’d appreciate your feedback to help us improve the article:
    Thank you! Tell us more about your experience with PDF Expert Help Center:

    It’s optional, but it will help us improve further 🙂

    Features

    • Edit PDF
    • Fill PDF
    • Sign PDF
    • Merge PDF

    Company

    • Terms of Use
    • Privacy Policy
    • Blog
    • Media Kit
    © 2007 - 2023 Readdle Limited
    Apple, the Apple logo, MacBook, iPad, iPad mini, iPadOS, iPad Pro, iPhone, and Apple Watch, are trademarks of Apple Inc., registered in the U.S. and other countries and regions. App Store and Mac App Store is a service mark of Apple Inc. registered in the U.S. and other countries and regions.