Hi Aspose Support,
We are currently using Aspose.Pdf for .NET Version 188.8.131.52.
We are planning to buy a new subscription for the latest versions of the Aspose libraries, but only if our issues will be solved with this…
Our goal is, to add watermarks to every page of an existing PDF document. Further goals are a fast execution and small pdf file sizes.
We are currently using the approach suggested by Farhan.Raza here: Fastest way to add a watermark
When opening the resulting file with a pdf viewer (a browser will not show you enough detail!), there are black rims on the border between the painted and the transparent sections of the image. You can see them best on the border of the circular logo. Since the files will be sent by email, we do not want these rims to appear.
I set up a small testing project for you to reproduce the issue. The used PDF document and the image are included in the projects root directory.
Please let me know if there is any other approach we should try or if this issue is fixed in a later version of Aspose.Pdf.