Hi Aspose team,
I found your project (HTML5 PDF Editor) and started to play with it.
Aspose.Pdf component was replaced with latest version (20.3) and I was able to import PDF documents.
When I tried to add signature it worked partially - problem is that signature is added only to odd pages. If you try to put something on even page nothing happens.
During debugging I saw that page was properly identified but for unknown reason even pages are making trouble.
Sample project is attached. In ZIP file you can also find Word document with screenshots where you can see that on second page I added signature but when I opened export.pdf file nothing was there (second screenshot). Of course, if you place something on odd pages all will be ok.
In Convert folder you can find input.pdf which is what I used for test. Btw. same happend with other multipage documents.
Thanks for help,
SampleProject.ZIP (3.8 MB)