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I want to use PDF operations in c# like merging pdfs, adding bookmarks to pdf and compression of pdf so for all these things which pdf library should i use?
I need it for commercial product. I dont want to buy any paid library. I want library which is free for commercial use.
Thanks in advance
there are two popular free versions (though neither may meet your requirements)
http://www.pdfsharp.net/MainPage.ashx
https://itextpdf.com/products/itextsharp