Spire.PDF 5.3.2 supports adding timestamps when signing PDF

We're pleased to announce that Spire.PDF 5.3.2 is released today. This version supports to add timestamps that conform to RFC 3161 standard when digitally signing a PDF document. Besides, this update fixes serval issues as well. More details are given below.

New Features:

• Supports to add timestamps that conform to RFC 3161 standard when digitally signing a PDF document.

// Summary:
//     Configure timestamp which must conform to RFC 3161.
//
// Parameters:
//   handler:
//     the handler which generate timestamp token
public void ConfigureTimestamp(PdfSignature.TimestampGenerateHandler handler);
//
// Summary:
//     Configure timestamp which must conform to RFC 3161.
//
// Parameters:
//   tsaUrl:
//     TSA url
public void ConfigureTimestamp(string tsaUrl);

Bug Fixes:

• Fixes the issue that drawing content to XPS document failed.
• Fixes the issue that the application threw an exception when printing a PDF document.
• Fixes the issue that some content was missing after converting XPS to PDF.
• Fixes the issue that the application threw an exception when converting PDF to image.