How can I working with PDF Redaction in SfPdfViewer by handle DragGesture?

[Thanh Hai Dang]

Hi, 

I have a SfPdfViewer. How can I determine rectangle coordinates by mouse, then using this rectangle and PdfRedaction class to redact Pdf file displayed by the PdfViewer?

Additional, how can I draw the selection area runtime when mouse drag? 

Exactly, I want to perform redaction Pdf file like the Nitro PDF. 

White out: https://www.youtube.com/watch?v=M1RSSfi2ceU

Mark Redaction:  https://www.youtube.com/watch?v=U1_wsHlbO3Y.

Many thanks a

[Deepika Ravi]

Hi Thanh Hai Dang,

At present, we do not have support for reduction in SfPdfViewer. However, we have prepared a workaround solution for your requirement with the help of Syncfusion PDF Library. Please find the workaround sample application from the attachment (along with the output screen record of the same) for PDF reduction.

Please find the workflow of the application,

• Click the “Mark for redaction” button in the Appbar to select the redaction area. This activates the square annotation mode in SfPdfViewer. Then, select the area in the PDF document that needs to be redacted.

• After selecting the area, click the “Apply Redaction” button to apply the reduction in the PDF document. Once the reduction is applied, the PDF will be reloaded in the SfPdfViewer.

For detailed instructions on the reduction process, please refer to the following user guide documentation link,

https://help.syncfusion.com/file-formats/pdf/working-with-redaction

Regards,

Deepika R

Attachment: Redaction_f576f4f1.zip

[Thanh Hai Dang]

Hi Deepika,

According to your suggestion, I've made a workaround to solve my issue. 

However, I'm still looking for the official support from Synfucsion ASAP. 

Thank you and best regards,

TH

[Deepika Ravi]

Hi Thanh Hai Dang,

We do not have any immediate plans to implement this feature. At the planning stage for every release cycle, we review all open features and identify features for implementation based on specific parameters including product vision, technological feasibility, and customer interest. kindly share your use case requirements for this feature. This information will be helpful for us to proceed further.

Regards,

Deepika R