Syncfusion WPF PDF Viewer can’t create digital signatures, so how do you enable secure in app signing anyway? Discover a custom, programmatic eSign workflow.

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Syncfusion's WPF PDF Viewer supports viewing digital signatures but not creating them via its UI. This tutorial demonstrates a programmatic workaround by combining the WPF PDF Viewer with the Syncfusion .NET PDF Library. The approach involves four steps: injecting a custom eSign button into the toolbar, capturing mouse-click coordinates and converting them to page-relative positions, dynamically generating a visual signature image with signer name and timestamp, and applying a certificate-based (.pfx) digital signature with embedded metadata. The signed PDF is then saved and reloaded in-app, providing a seamless click-to-sign experience without external tools.

Effortless Digital Signatures for Everyone: Sign PDFs with a User-Friendly Tool in a WPF PDF Viewer