Content Is Missing after Using RemoveEncryption Method on PPT File in C#

Aspose.Slides Product Family
,
1

Hi,

Something missing when ulocking a slide.

Using SDK: Aspose.Slides for .Net 24.5.
Tested OSs were Win7 and Win10
.NET target platform is .net 6.0

Using code

void testUnlockppt(string filename)
{
    Presentation document = new Aspose.Slides.Presentation(filename);
    document.ProtectionManager.RemoveWriteProtection();
    document.ProtectionManager.RemoveEncryption();
    document.Save(filename + ".out.ppt", Aspose.Slides.Export.SaveFormat.Ppt);
}

Different is in page 5.
图片.png (97.6 KB)

Using file:
滑轮问题的深入分析(第三课时)（2016）.7z (290.1 KB)

2

@kngstr,
Thank you for contacting support. I’ve reproduced problems similar to the one you described.

We have opened the following new ticket(s) in our internal issue tracking system and will deliver their fixes according to the terms mentioned in Free Support Policies.

Issue ID(s): SLIDESNET-44597

You can obtain Paid Support Services if you need support on a priority basis, along with the direct access to our Paid Support management team.

3

The issues you found earlier (filed as SLIDESNET-44597) have been fixed in Aspose.Slides for .NET 24.7 (ZIP, MSI, NuGet, Cross-platform).
You can check all fixes on the Release Notes page.
You can also find the latest version of our library on the Product Download page.

4

Page 5 is still not fixed @andrey.potapov

5

@kngstr,

I tested your scenario/case using your original PPT Presentation file and sample code snippet. It works fine (Page 5 is OK) and the output Presentation file is fine tuned. Please find attached the output PPT file for your reference.
滑轮问题的深入分析(第三课时)（2016）.out.zip (188.9 KB)

Please make sure that you are using Aspose.Slides.NET 24.7.0. In case you still find the issue, kindly do provide resource files (input and output presentation files), sample code snippet and some screenshots to highlight the problematic areas. We will evaluate your issue soon.

6

The file you uploaded is not good in WPS.
original.5.png (205.8 KB)

output.5.png (304.8 KB)

Yes. I tested with 24.7 and 24.12.
These two versions got the same output with page 5.

Test code is same with the topic.

7

@kngstr,

Thanks for the screenshots and further details.

Aspose.Slides mostly follows the MS PowerPoint app standards and specifications. I am also using MS PowerPoint app to authenticate the output Presentation file and it works fine in it.
As you are using WPS office and you are still getting the issue when viewing the output presentation in it. We will check if could fix the issue for WPS as well. We may get back to you soon with new updates on it.

8

@amjad.sahi
Okay, next time I give feedback, I will remember to mention WPS

9

@kngstr,

Alright and thanks.