I want to undo and redo the pdf documents, which are viewed using pdftron. This is to be done to the document which are edited during runtime. I am using windows presentation Foundation(WPF) for this project.
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Does this help? https://www.pdftron.com/documentation/core/guides/features/edit/undoredo/ – Matthew Watson Feb 21 '20 at 09:23
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I was following this documentation, but couldn't achieve output. I wanted to undo while clicking undo button and redo while clicking redo button. – Bikalpa Gyawali Feb 21 '20 at 10:02
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You may have to contact PDFTron for guidance. – Matthew Watson Feb 21 '20 at 10:57
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You would use the latest SDK version, and use the pdftron.SDF.UndoManager class, as described here.
https://www.pdftron.com/documentation/core/guides/features/edit/undoredo/ https://www.pdftron.com/api/PDFTronSDK/dotnet/pdftron.SDF.UndoManager.html
Most likely, to start with, you would set this up with just the annotations, and add the snapshot logic in ToolManager perhaps. Then you can add undo/redo buttons to iterate through the snapshots.
Ryan
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