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What's New in Essential Studio for WPF


What's New in Essential Studio for WPF

The 2022 Volume 3 release comes with digital signatures and programmatic support to add or remove annotations in the PDF Viewer, as well as headers for Diagram container objects.


Container enhancement

This feature allows users to add a header block to the container objects.

Title for Container

PDF Library

Create PDF digital signatures with LTV using a time-stamp URL

Long-term validation, or LTV, means that all the information needed to verify the digital signature is embedded within the PDF file.

Now, the Syncfusion .NET PDF Library digitally signs a PDF document with LTV using a time-stamp URL only. All the necessary details such as certificate chain, OCSP, and CRL can be downloaded from the given URL and embedded into the PDF document.

PDF digital signature enhancements

  • Provided support to get OCSP and CRL details from existing digitally signed PDF documents to verify the LTV.
  • Provided an API to choose between OCSP and CRL to validate the LTV in a PDF document.

External OCR engine

The Syncfusion OCR processor library uses the Tesseract OCR engine by default to extract text from scanned PDFs and images.

Now users can change the default OCR engine to external OCR services from Microsoft Azure, AWS, Google, and more.

HTML-to-PDF conversion enhancement

  • The Syncfusion HTML-to-PDF converter now uses the Chromium Blink rendering engine by default to convert HTML pages to PDF documents. The Blink rendering engine supports all the modern features supported by Google’s Chrome browser.
  • You no longer need to set the path for Blink binaries. By default, it is copied to the bin folder while installing the HTML-to-PDF converter NuGet packages.

PDF Viewer

Render digital signatures

This feature renders digital signatures in the PDF Viewer control, but the user cannot interact with them.

Form fields tab order index

This feature allows users to focus on and navigate form fields in PDF documents with a tab order index. This helps them edit the form fields in the PDF effortlessly.

Programmatic support for manipulating annotations

This feature allows users to add, remove, or modify the annotations programmatically using the existing PdfLoadedDocument’s API.

PowerPoint Library

PowerPoint-to-PDF conversion enhancements

Preserve structure tags in converted PDF documents for accessibility (PDF/UA or 508 compliance) support.

PowerPoint to PDF in WPF

Word Library

Word-to-PDF conversion enhancements

Wavy, wavy heavy, wavy double, and double underline styles render as they are in the input Word document.

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