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How to prevent copying the text of a PDF displayed in PDFViewer - WPF C# MVVM
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Kazuhiro Tomita  
#1 Posted : Saturday, January 18, 2025 11:06:41 PM(UTC)
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Kazuhiro Tomita

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I am using Pdfium's PdfViewer in WPF, C#.
I want to prevent copying and pasting text from a PDF. in the default state, selecting text in a PDF and pressing Ctrl+C will copy the text to the clipboard.
How do I set this so that I can't do this?
Either approach is fine, either disable text selection or disable copying to the clipboard.


I want to switch the availability of copying the text from ViewModel, so it would have been ideal if I could set something like TextSelectionEnabled = false in the pdfViewer's DependencyProperty, but it doesn't seem to be possible.
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Paul Rayman  
#2 Posted : Tuesday, January 21, 2025 8:25:14 PM(UTC)
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Paul Rayman

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Hello,
Code:
pdfViewer1.MouseMode = MouseModes.PanTool;
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Kazuhiro Tomita  
#3 Posted : Thursday, January 23, 2025 9:02:41 AM(UTC)
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Kazuhiro Tomita

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Thank you!
I misunderstood when I posted this question and it was a bit odd, but anyway, now I have achieved what I wanted to do.
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