Unwanted fonts on PDF/A3 converted document

Hi,

I'm using the following code to print a word document into a PDF/A3 one. Unfortunately every time I run this code with a single line document with arail font I get a Helvetica Font added to my PDF. The fact is I DO NOT want the Helvetica font on my PDF because it is not embbeded. How can I do that ?

 Here is the Font description from Adobe Reader : Image_1212_1776871128667


Here is my code 

using (FileStream fileStreamPath = new FileStream(Path.GetFullPath(wordpath), FileMode.Open, FileAccess.Read, FileShare.ReadWrite)) {

                    using (WordDocument document = new WordDocument(fileStreamPath, FormatType.Docx)) {

                        document.FontSettings.SubstituteFont += new SubstituteFontEventHandler(SubstituteFont);

                        DocIORenderer render = new DocIORenderer();

                        render.Settings.PdfConformanceLevel = PdfConformanceLevel.Pdf_A3B;

                        render.Settings.EmbedFonts = true;

                        render.Settings.AutoDetectComplexScript = false;

                        render.Settings.EmbedCompleteFonts = true;

                        // Convert Word to PDF

                        using (PdfDocument pdfDocument = render.ConvertToPDF(document)) {

                            using (FileStream outputFileStream = new FileStream(Path.GetFullPath(pdfpath), FileMode.Create, FileAccess.ReadWrite)) {

                                pdfDocument.Attachments.Add(xml);

                                pdfDocument.Save(outputFileStream);

                            }

                        }

                        render.Dispose();

                        document.Dispose();

                    }

                }

            }


1 Reply 1 reply marked as answer

KN Karan Nagarathinam Syncfusion Team April 23, 2026 06:12 AM UTC

Hi pofje,
Thank you for reaching out to us.
We understand your scenario: your input document contains a single line of text with the Arial font applied. However, the generated output PDF document includes additional fonts such as Helvetica. We suspect this may be due to a licensing watermark being added to the output PDF, which requires the Helvetica font to preserve the watermark text. When using a valid license key to generate the output PDF, the licensing watermark should not appear, and only the Arial font should be displayed in the output document.

If your generated output PDF document using a license key still shows the same issue, kindly share the following details to help us reproduce the exact problem at our end:
1. The input document.
2. Output PDF document generated at your end (helpful to investigate about the problem).
3. Environment details (Operating system, if any cloud or docker means, share configuration and plan details).

Regards,
Karan.


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