PDF Expert
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    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
      • Full Screen Mode on Mac
      • 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

    Troubleshooting

    PDF Expert quits or doesn't open

    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: Try disabling iCloud for PDF Expert: open iOS settings >  iCloud > iCloud Drive > disable PDF Expert t...
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    PDF Expert freezes

    If PDF Expert doesn’t respond or freezes, select your case and follow the steps to solve this issue straight away, or get help from our Support Team. If the app freezes on a certain tool or action Mac iOS Try restarting the app by clicking Force Quit in the Apple menu or on the app's icon in the dock and if it doesn't help, send us an email to rdsup...
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    All files in the app look blank on iOS device

    If your files look blank when you open them after you update PDF Expert, first of all, please try rebooting your iPhone or iPad. If it doesn't help, please send us logs - we're happy to help you personally: Open PDF Expert.    Go to Settings  > Support > Detailed logging toggle on.    Reproduce the issue.    Go to Settings  > Support > S...
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    Annotation tools do not work

    There might be cases when some annotation tools, like Highlight, Underline, or Strikeout don't seem to work - the reason might be file-specific. In order to check that, you can do as follows: Mac iOS Try selecting the text in your file - if it can't be selected, or your file is not searchable, your file is most likely a scan or an image that was sav...
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    Printing issues on Mac

    Sometimes you might face printing issues while working in PDF Expert - there could be several troubleshooting options for each case.  1.  Follow the steps to fix file-specific issues Launch PDF Expert and open your PDF. Go to the File section. Select Print > Save as PostScript. Open your new file in the Preview app. Select Print. Select Export as...
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    Corrupted files

    Mac iOS In case the file can't be opened and instead you see the message about it being corrupted, these are the first aid steps for your PDF:  Restart your app by clicking Force Quit in Apple Menu or on the app's icon in the dock. After this, launch the app again and check if the file can be opened. Try opening the same file in the Preview app and ...
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    Sync issues

    If you have sync issues in PDF Expert for iOS, there are some steps you can take in order to troubleshoot the problem.  Step 1 First, please make sure you have a stable network connection. Try disabling the Wi-Fi, enabling it again, then open PDF Expert > Synced folder > pull down to refresh and trigger the sync process. Note:  The background ...
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    Restore accidentally deleted files

    Mac iOS You can check whether your file is in Bin. For this, click the Bin icon in the bottom right corner. If the needed file is here, simply drag & drop it out of the Bin. If you use Time Machine to back up your Mac, you can recover your files as described in this article. Please note that due to the design specifics of the macOS system, all f...
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    File cannot be opened

    If you have issues with opening one of your files in PDF Expert, please see the list of the supported file formats in PDF Expert User’s Guide available here. Note: PDF Expert for iPad supports filling out AcroForms created in Adobe Acrobat or other similar apps and Static XFA forms created in Adobe LiveCycle. DynamicLifeCycle (XFA) forms are not sup...
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    Annotations made in PDF Expert are not visible in a third-party app

    If you open the PDF file, which was annotated in PDF Expert, using a third-party app (e.g. some cloud storage application or email client which use a simple PDF viewer) and do not see your edits, this means that the third-party app you use might not support all the advanced features supported by PDF Expert and this app does not display edits. For ex...
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    File looks blurry

    If the PDF file you're trying to work on in our app somehow looks blurry or has a checkered background instead of displaying the text, you can try several options. Mac iOS First, keep the file open for a while to see if it loads in the end. If it doesn't help, try opening this file in the Preview app - this is a standard macOS viewer that uses the s...
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    The search results look garbled (only Mac)

    Since there's a vast variety of PDF files out there, some of them might contain non-standard fonts - this often results in characters being garbled in the search tab or even in Edit mode.   Our app supports Apple standard fonts only - thus, if the font used in the file is not on the list, it's most probably because it's a custom font.   Here's what ...
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    Features

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

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