Hi Anand,
Thanks for your update.
1.Example to convert an existing word document to PDF:Currently we don’t provide direct conversion support from Doc to PDF. We have stopped support for this feature. Sorry for the inconvenience caused.
2.Will it be possible to keep appending to existing PDF?We have implemented a new PDF. But in our new PDF it is not possible to read an existing document. We have implemented this feature in next release. But in our old PDF legacy it is possible to appending an existing PDF. Please refer the below code snippet:
PDFDocument doc1 = new PDFDocument(@"..\..\data\Sample1.pdf");
PDFDocument.Append(doc1, @"..\..\data\Sample2.pdf");
Also, please refer the sample in the below link which illustrates the above:
http://websamples.syncfusion.com/samples/PDF.Windows/F71915/main.htmPlease try this and let me know if this helps.
Regards,
G.Yavana