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Completed
Last Updated: 12 Nov 2025 11:41 by ADMIN
Release 2025.4.1104 (2025 Q4)
Byron George
Created on: 29 Oct 2025 09:59
Category: Telerik Document Processing
Type: Bug Report
2
PdfProcessing: Encrypted documents with an AES-256 algorithm are opened as empty documents on Apple devices

Generate a sample document with RadPdfProcessing and export it with AES-256 encryption. Try to open it on an iPhone with the default Pdf Viewer of iOS. The document is empty. However, the mobile version of Adobe for iOS opens the document successfully.

 

 
4 comments
ADMIN
Dess | Tech Support Engineer, Principal
Posted on: 10 Nov 2025 15:05

Hi, Matt,

This item is expected to be included with the next release scheduled for this Wednesday (12 Nov).

Please give it a try once the Q4 2025 version is officially released and let me know whether it has a positive impact on your end.

Regards,
Dess | Tech Support Engineer, Principal
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Matt
Posted on: 10 Nov 2025 09:31

Hi Dess

Thats great thanks. Do you have any more information as to whether this made it into the next release?

Kind Regards

Matt

ADMIN
Dess | Tech Support Engineer, Principal
Posted on: 04 Nov 2025 13:34

Hello, Matt,

We are currently working on providing such functionality and the achieved results are successful so far. If the quality assurance workflow is performed successfully, we will do our best to introduce the improvement in the upcoming Q4 2025 release which is scheduled for the middle of next week. Stay tuned.

Regards,
Dess | Tech Support Engineer, Principal
Progress Telerik

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Matt
Posted on: 03 Nov 2025 09:29

This works using iText to ecrypt the document as can be seen in the document and thread here. The document was encrypted using iText and opens correctly on an iPhone so this must be possible. If you view inspect the document it may possible to see the differencces with your implimentation.

https://feedback.telerik.com/document-processing/1699425-pdfprocessing-add-support-for-encrypting-documents-with-an-aes-128-algorithm

I have reattached the document Dan provided created with iText to this thread for easier access.

Thanks

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