Passswortgeschütze PDF auf iPhone drucken nicht möglich

Hi there,

I hope you're doing well. Thank you for reaching out.

The issue you're experiencing with AES256-encrypted PDFs on iOS devices—where the iPad displays the document correctly but the iPhone shows a blank screen when printing—could be due to differences in how these devices handle PDF rendering and encryption.

Here are some potential reasons and solutions:

1. Rendering Differences: Although both devices run the same OS, they may handle PDF rendering and printing differently due to variations in hardware and software optimizations.
2. App Variability: Different PDF viewers or browsers on iOS might have varying levels of support for encrypted PDFs. Safari on the iPhone may not fully support the encryption features used in your PDF.
3. PDF Viewer Limitations: The built-in PDF viewer on the iPhone might struggle with encrypted PDFs in ways that the iPad does not. Trying an alternative PDF viewer on the iPhone could resolve this.
4. iOS Version: Ensure both devices are updated to the latest iOS version. Discrepancies between software versions can sometimes lead to issues with file handling.

Here are a few things to try:

1. Use a Different App: Try opening and printing the PDF using a different app like Adobe Acrobat Reader on the iPhone to see if it handles the encryption better.
2. Print via Share: Instead of printing directly from Safari, share the document with an app that supports printing to see if that method works.
3. Update Adobe Acrobat Reader: Make sure Adobe Acrobat Reader is updated to the latest version on both devices, as updates can resolve compatibility issues.
4. Check Print Settings: Verify that the print settings and printer configurations are consistent across both devices, as discrepancies here can also affect the printing process.

I hope these suggestions help resolve the issue

~Amal