Trying to convert a presention to pdf

[Niv Elad]

Hi

When I try to convert a ppt to pdf I get the following message: 

Value cannot be null. (Parameter 'fontFile')

I am using the following article - Guide

this is the full stack trace: 

System.ArgumentNullException: Value cannot be null. (Parameter 'fontFile')
   at Syncfusion.Pdf.Graphics.PdfTrueTypeFont.CreateFontInternal(Stream fontStream, PdfFontStyle style)
   at Syncfusion.Pdf.Graphics.PdfTrueTypeFont..ctor(Stream fontStream, Single size, Boolean isUnicode, String metricsName, PdfFontStyle fontStyle)
   at Syncfusion.PresentationRenderer.PresentationRendererHepler.MeasureString(Font font, String strValue, FontSettings fontSettings)
   at Syncfusion.Presentation.RichText.Paragraph.MeasureString(String text, Font font, TextCapsType capsType)
   at Syncfusion.Presentation.RichText.Paragraph.UpdateEmptyParagraphHeight(Single maxHeight, Single& maxAscent)
   at Syncfusion.Presentation.RichText.Paragraph.Layout(RectangleF shapeBounds, Single& usedHeight, Boolean isWrap, Single& maxWidth)
   at Syncfusion.Presentation.Drawing.Shape.Layout()
   at Syncfusion.Presentation.SlideImplementation.Slide.Layout(Shape shape)
   at Syncfusion.Presentation.SlideImplementation.Slide.LayoutGroupShape(Shape groupShape, List`1 groupShapeBounds, List`1 groupShapeRotations, List`1 groupShapeHorzFlips, List`1 groupShapeVertFlips)
   at Syncfusion.Presentation.SlideImplementation.Slide.Layout(Shape shape)
   at Syncfusion.Presentation.SlideImplementation.Slide.Layout()
   at Syncfusion.PresentationToPdfConverter.PresentationToPdfConverter.DrawSlide(PdfDocument pdfDocument, ISlide slide, IPresentation presentation)
   at Syncfusion.PresentationToPdfConverter.PresentationToPdfConverter.Convert(IPresentation presentation, PresentationToPdfConverterSettings settings)
   at Syncfusion.PresentationToPdfConverter.PresentationToPdfConverter.Convert(IPresentation presentation)


[Lokesh Baskar]

Hi Niv Elad,

We have tried to reproduce the reported problem using the simple pptx document, but it works properly on our end. For your reference, we have attached the sample application which we used to reproduce the reported issue and it can be downloaded from the below link.
https://www.syncfusion.com/downloads/support/directtrac/general/ze/PresentationSample1889310905.zip

We suspect that the reported issue might be due to fonts used in the PPTX document is missed in our Production environment. Could you please ensure that all the fonts used in the PPTX document are available in the production environment during PPTX to PDF conversion. Using the SubstituteFont event, you can identify the missed font in the production environment during PPTX to PDF conversion. Please refer here to know more information about this.

If the fonts used in the PPTX document are not installed on your machine means, please install the required font or set the alternate font (same font file *.ttf or alternate font) using the code snippets in the below link:

https://help.syncfusion.com/file-formats/presentation/presentation-to-pdf#upload-font-stream

If you still facing issue means, could you please share with us the simple issue reproducible sample application, the input PPTX document along with the font files to reproduce the exact issue at our end. And also share the Syncfusion product version used. Thereby we will analyze further on the reported problem and update you with the appropriate solution at the earliest.


Regards,

Lokesh B

[Niv Elad]

Thanks. 

I need to install a font package to my container