zaplin ZapLib by: zaplin .NET Framework 4.7.2 40,617 total downloads last updated 10/19/2023 Latest version: 2.4.5 Zap Lib API https://github.com/LinZap/ZapLib PDFLib by: zaplin .NET Framework 4.7.2 2,391 total downloads last updated 9/29/2022 Latest version: 1.1.3 PDF Lib Watermark PDF Watermark Lib