Spire.PDF for Python 11.12.1 现已正式发布，本次更新带来了多项新功能，包括为数字签名添加时间戳、配置 PDF 转 Excel 时的多种布局选项、以及在 PDF 转 Markdown 时忽略图像。同时，本版本还修复了两个已知问题。更多详情如下。

新功能:

• 支持为数字签名添加时间戳。

doc = PdfDocument ()
        doc. LoadFromFile (inputFile)
        # Create a digital signature
        signature = Security_PdfSignature (doc, doc.Pages.get_Item(0), inputFile_pfx,"08100601", "signature")
        signature.SignDetailsFont =  PdfFont(PdfFontFamily.Courier,8.0)
        # Set the bounds of the signature box
        signature.Bounds = RectangleF(PointF(90.0, 550.0), SizeF (180.0, 90.0))
        # Configure signature appearance and details
        signature.NameLabel = "Digitally signed by:Gary"
        signature.LocationInfoLabel ="Location:"
        signature.LocationInfo = "CN"
        signature.ReasonLabel = "Reaseon:"
        signature.Reason = "Ensure authenticity"
        signature.ContactInfoLabel = "Contact Number:"
        signature.ContactInfo = "028-81705109"
        # Set document permissions
        signature.DocumentPermissions = PdfCertificationFlags.ForbidChanges.value
        # Set graphic mode for the signature
        signature.GraphicsMode = Security_GraphicMode.SignImageAndSignDetail
        # Set the signature image
        signature.SignImageSource = PdfImage.FromFile(inputImage)
        #When setting “none", the Image and Detail are distributed on both sides, when setting “Stretch", the image extends to the entire signatu
        signature.SignImageLayout = SignImageLayout.none
        url = "https://freetsa.org/tsr"
        signature.ConfigureTimestamp(url)
        signature.ConfigureHttpOCSP (None, None)
        signature.Certificated = True
        doc.SaveToFile(outputFile)  
        doc.Close()

• 支持转换PDF到Excel时配置文本布局选项。

pdf = PdfDocument()
pdf.LoadFromFile(inputFile)
textOption = XlsxTextLayoutOptions(True, False, False)
pdf.ConvertOptions.SetPdfToXlsxOptions(textOption)
pdf.SaveToFile(outputFile, FileFormat.XLSX)
pdf.Dispose()

• 支持转换PDF到Excel时配置行布局选项。

pdf = PdfDocument()
pdf.LoadFromFile(inputFile)
lineOption = XlsxLineLayoutOptions(False,False,False,False)
pdf.ConvertOptions.SetPdfToXlsxOptions(lineOption)
pdf.SaveToFile(outputFile, FileFormat.XLSX)
pdf.Dispose()

• 支持转换PDF到Excel配置表格布局选项。

# Load the PDF document from the specified input file path
pdf.LoadFromFile(inputFile)
# Set the XlsxSpecialTableLayoutOptions as the conversion options for PDF to XLSX conversion
options = XlsxSpecialTableLayoutOptions(False, False, False)
# Save the PDF document as an Excel file using the specified format and options
pdf.SaveToFile(outputFile, FileFormat.XLSX)

• 支持配置OFD转换选项。

pdf = PdfDocument ()
pdf. LoadFromFile (inputFile)
ofdOptions =  OfdOptions()
ofdOptions.UseTempFileStorage = True
pdf.ConvertOptions.SetPdfToOfdOptions(ofdOptions)
pdf.SaveToFile(outputFile,FileFormat.OFD)

• 支持转换PDF到Markdown时配置忽略图片选项。

# Create an instance of PdfToMarkdownConverter with the input PDF file
converter = PdfToMarkdownConverter(inputFile)
# Configure the converter to skip processing images in the PDF
converter.MarkdownOptions.IgnoreImage = True
# Convert the PDF content to Markdown format and save to the output file
converter.ConvertToMarkdown(outputFile)

• 支持转换PDF到SVG时，配置SVG文件的宽度和高度。

converter =  PdfToSvgConverter(inputFile)
converter.SvgOptions.ScaleX = 1.0
converter.SvgOptions.ScaleY = 1.0
converter.Convert(outputFile)

问题修复:

• 修复了转换PDF到PPTX，表格边框丢失的问题。
• 修复了设置PdfGird的单元格边框，程序抛异常的问题。

https://www.e-iceblue.cn/Downloads/Spire-PDF-Python.html