PDF Expert allows for keeping your files up-to-date between your iOS and macOS devices. All you need is PDF Expert installed on both platforms, access to the Internet, and any cloud storage (e.g. iCloud Drive, Dropbox, Google Drive, etc.). Files you edit on the iOS device will sync to your Mac and vice versa if you connect to the same cloud storage account on both platforms.
Learn more about synchronization in PDF Expert: https://support.readdle.com/pdfexpert/en_US/synchronization/sync-your-pdf-files-between-devices
PDF Expert for iOS supports the system-wide Dark Mode to please your eyes while working at night and help you save the battery. As for the Mac version of PDF Expert, it adjusts to the system settings, but the chosen mode doesn't affect the files themselves. Meanwhile, you can set the Night or Sepia theme to improve your reading experience on Mac.
To enjoy the Dark Mode, please make sure you have iOS 13 or iPadOS and PDF Expert version 7.2.0 or later.
Once you enable the Dark Mode in the Settings app on your iPhone or iPad, PDF Expert also switches to the darkened appearance.
To turn on the Dark Mode on your device, please follow these steps:
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 files you've ever opened in PDF Expert are saved locally on your device, not in the PDF Expert app, and can be modified via the Finder app.
After the file is deleted from PDF Expert for iOS, it will be placed in the Recently Deleted folder of the PDF Expert app; you will have up to 30 days to restore deleted files.
If your Mac is connected to the iCloud storage, try recovering the deleted files on iCloud.com as described in this article.
If you delete the file which was located in an iCloud folder of the PDF Expert app, you can also restore it on the iCloud webpage > iCloud settings > Restore files section. If the file was in a synced folder, please check the 'Recently Deleted' folder within your PDF Expert app.
Once PDF Expert is downloaded and installed on your Mac you are able to make the app your default reader for all PDF files. There is an easy way to do it:
1. Open PDF Expert, tap PDF Expert in the upper menu and select Preferences.
2. In the “Default PDF Reader” section, select PDF Expert from the list.
Afterward, every time you double-click on a PDF file in Finder, it will be automatically opened in PDF Expert.
You can easily share one or multiple documents from PDF Expert via other apps or Airdrop.
How to share a PDF file
Tip: On Mac, you can also Export your PDFs to Word, Excel, PowerPoint, Text, or Image documents.
You can also share a file with the nearby Apple devices using AirDrop.
If you need to share a flattened copy or only the annotated pages, please follow these steps:
You can also share a file with the nearby Apple devices using AirDrop.
If you need to share a flattened copy or only the annotated pages, please follow these steps:
How to share multiple PDFs at once
Our team is happy to help you personally - press "yes" under the question below to contact us. In the meantime, you are also welcome to check out our self-service articles:
Please contact us by following the steps below and we'll get in touch to resolve the issue:
*The logs you will send us may contain sensitive personal information, so we encourage you to review them before sending them. We will, of course, treat logs as confidential information, never share them with third parties and retain them according to our Privacy Policy.*
Try disconnecting the cloud storage account from the PDF Expert on your iPhone/iPad:
Then, connect it again and check if it helped.
If your account uses conditional access, the admin of your organization should configure the rights for your account - you can refer to this article for the instructions.
To help us with further investigation, please also try these steps:
Try disconnecting the cloud storage account from the PDF Expert on your iPhone/iPad:
Then, connect it again and check if it helped.
Dropbox sync errors can be caused by the specific copyrighted file if its sharing is restricted by Dropbox's copyright policy.
If you sync a file and its sharing is restricted by Dropbox copyright policy, you will see an exclamation mark on the folder and a Restricted content error on the file thumbnail. Remove the file from the folder to get rid of the error message.
Try disconnecting the cloud storage account from the PDF Expert on your iPhone/iPad:
Then, connect it again and check if it helped.
Some cloud services impose special character restrictions for the names of files and folders. Using such special characters might lead to sync errors. If restricted characters are used in the titles of files and folders, you will see an exclamation mark on the folder and an unknown error on the file thumbnail. Please check your cloud service support section for more information on special character limitations.
Try disconnecting the cloud storage account from the PDF Expert on your iPhone/iPad:
Then, connect it again and check if it helped.
Try restarting the app by clicking Force Quit in the Apple menu or on the app's icon in the dock. If it doesn't help, contact us by choosing "Yes" under the question below. In your message, describe the issue you are experiencing with PDF Expert.
The steps are listed in order: start with the first one, see if that helps, and then continue to the next one if it doesn't.
Try opening this file in the Preview app - this is a standard macOS viewer that uses the same system component as our app.
First, reboot your device:
Another temporary solution would be the following:
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.
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.
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.
Follow the steps to fix file-specific issues.
Try printing the file in the Preview app. If you're using a printer with system drivers and if you have trouble printing a file - e.g. some of the elements are printed in black, something is absent on the page or the file can't be printed at all, the reason might be related to the system. PDF Expert uses the macOS system printing, thus we're always suggesting that you try printing the same file in the Preview app since this app uses the same system component as ours in terms of printing.
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 same system component as our app:
If the issue persists on iOS device, try opening the problematic PDF in the iBooks app - this is a standard iOS app that uses the same system component as we do:
We recommend opening the file in an advanced PDF editor app (e.g. PDF Expert, our Documents app, or Adobe Reader) to see all your edits and keep on working with a file.
If opening the file in an advanced PDF Editor is not an option,
Thank you for using PDF Expert!
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 files you've ever opened in PDF Expert are saved locally on your device, not in the PDF Expert app, and can be modified via the Finder app.
After the file is deleted from PDF Expert for iOS, it will be placed in the Recently Deleted folder of the PDF Expert app; you will have up to 30 days to restore deleted files.
If your Mac is connected to the iCloud storage, try recovering the deleted files on iCloud.com as described in this article.
If you delete the file which was located in an iCloud folder of the PDF Expert app, you can also restore it on the iCloud webpage > iCloud settings > Restore files section. If the file was in a synced folder, please check the 'Recently Deleted' folder within your PDF Expert app.
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:
At Readdle, we take your privacy seriously. We don’t sell or unlawfully share your personal data with any third parties. Our Privacy Policy explains how we treat your data to provide safety for your data, and our Team is always ready to answer any of your questions regarding this topic. To ask, simply choose "Yes" under the question below.