Hi Chagit,
Thank you for your update.
Regarding picture disappearance:
The image location is not properly mapped to the HTML file. Please refer the modified sample attached below. The converted file and the images should be in same folder to be properly mapped.
To map the image we have used the below code snippet in your code.
//Explicitly specify the Image Export Folder
newDocument.SaveOptions.HtmlExportImagesFolder = @".";
Please refer the code snippet in our online sample for further reference.
http://samples.syncfusion.com/ASPNET/8.2.0.18/Web/DocIO.Web/samples/3.5/Import%20and%20Export/DocToHTML/CS/DocToHTML.aspx?args=9Code Snippet:
//Export the doc to HTML and save as .html file
string strHtml = Server.MapPath("doctohtml.html");
doc.SaveOptions.HtmlExportImagesFolder = this.Server.MapPath(string.Empty);
Please let us know if you have any other questions.
Regards
Rajendran
ConvertDocxToHtml_f86ffa6c.zip