Thanks for
your inquiry. I have tested the stamping scenario with a sample transparent GIF image using
Aspose.Pdf for .NET 10.1.0 and managed to observe the reported issue. For
further investigation and rectification, I have logged an issue in our issue tracking system as PDFNEWNET-38267 and also linked your
request to it. We will keep you update via this thread regarding the issue
status.
Moreover, we will appreciate it if you please share your sample image here as well. It will help us to address your issue exactly.
Please feel
free to contact us for any further assistance.
Thanks for your inquiry. I am afraid the issue is still not resolved as product team was busy in resolving other high priority issues. However, I have raised your issue priority and requested our team to complete the issue investigation and share an ETA at their earliest. We will notify you as soon as we get a feedback.
We are sorry for the inconvenience. Actually issue had a low priority, however we have already increased the issue priority and recorded your concern as well. We will let you know as soon as some update is available.
Please also note that adding a image with transparent background using the Aspose.Pdf.Document object, also does not work. Here, PNG and GIF both render with black background
We are sorry for the inconvenience. Please also share your sample PNG image with transparent background, it will help us to investigate and address you issue exactly.
Thanks for sharing the sample image. I have tested the scenario with Aspose.Pdf for .NET 16.11.0 and unable to notice black background issue. I will appreciate it if you please try the scenario with latest version and share the results. If the issue persist then please share your sample code here as well, so we will look into it and will guide you accordingly.
//Open document<o:p></o:p>
Aspose.Pdf.Document
pdfDocument = new Aspose.Pdf.Document(myDir + "Lenovo_Tablet_2_Pag1.pdf");
//Create image stamp
Aspose.Pdf.ImageStamp
imageStamp = new Aspose.Pdf.ImageStamp(myDir + "TOC.png");