How to Fix Cannot Print Password-Protected PDF on iPhone & iPad
Question details
Users are unable to print password-protected PDF files from their iOS devices via AirPrint, even after successfully entering the password to open the file.
- Product
- AirPrint / iOS PDF Readers
- Device & OS
- iOS (iPhone, iPad)
- Scenario
- Attempting to print a password-protected PDF using the AirPrint feature on an iPhone or iPad.
- Observed behavior
- The PDF opens successfully on the iOS device after entering the password, but when sent to the printer, the printer wakes up but produces no document, or AirPrint repeatedly asks for the password and fails to proceed.
Ensure that your printer is connected to the same Wi-Fi network as your iPhone or iPad, and verify that the PDF document's security settings actually allow printing.
Save an Unlocked Copy of the PDF
The most reliable workaround is to remove the password protection on a computer first, creating an unlocked copy that iOS AirPrint can process without errors.
Due to a known compatibility bug between iOS AirPrint and encrypted PDFs, the print spooler often fails to authenticate the document even if you've already entered the password to view it.
Transfer the protected PDF to a Windows or Mac computer and open it using a capable PDF editor like WPS Office.
Type in the document open password to view the file contents.
Navigate to the 'Protect' or 'Security' tab and select the option to encrypt or manage passwords. Clear the password fields to remove the encryption.
Save the document as a new, unprotected PDF file. Send this new file back to your iPhone or iPad.
Open the unprotected PDF on your iOS device, tap the Share icon, and select 'Print' to successfully send it to your printer.
Update iOS, Apps, and Printer Firmware
Software compatibility issues between iOS, the PDF reader application, and the printer driver can block protected files from printing.
Print Directly from a Computer
If AirPrint continues to reject the password on your iOS device, bypassing mobile printing entirely is a quick and effective alternative.
Use WPS Office to Manage and Print PDFs Easily
WPS Office provides robust PDF tools, allowing you to easily view, manage passwords, and print PDF documents securely across all your devices.
- 1. Install WPS Office: Download and install WPS Office on your computer or mobile device.
- 2. Open Your PDF: Open the password-protected PDF within the WPS app and enter the password when prompted.
- 3. Manage Permissions: Navigate to the 'Protect' tab to easily remove the document encryption if needed.
- 4. Print the Document: Tap or click the 'Print' button to send the document securely to your connected printer.
Frequently Asked Questions
Why does AirPrint keep asking for a password when printing a PDF?
AirPrint sometimes fails to carry over the authentication from the PDF viewer to the iOS print spooler. This is a known compatibility glitch between iOS and certain printer drivers when handling encrypted files.
Can I print a PDF if it has restricted printing permissions?
No. If the PDF has a permissions password (owner password) that specifically restricts printing, you will not be able to print it on any device until that restriction is removed using a desktop PDF editor.
Does this issue affect all printers on iOS?
While it frequently happens with specific brands like HP and Apple's default AirPrint protocol, the issue is tied more to how iOS handles PDF encryption rather than a specific printer brand. Removing the password first usually resolves it universally.
