问题
Questions:
Is ZetPDF just PDFSharp in disguise?
Is this product going to stick around?
Who are ZetPDF?
We are currently using PDFSharp to create our PDFs from scratch. We need to be able to draw in specific areas, add images from embedded resources, use a pdf embedded resource as a template for a new PDF, add barcodes (i.e. specific fonts or images), add things at exact locations, wrap text, and also do text flow pdfs (migradoc).
PdfSharp does all of these things, but I like to look around at any alternatives out there as I get nervous at the lack of progress, or zero updates on PdfSharp (and the fact it is still beta). And I would also like to see if there is a product that will support .NET Core.
So I have recently discovered ZetPDF. https://zetpdf.com/
It looks extremely similar to PdfSharp.
There seems to be very little information around about it. Is this a project that will be worked on and kept up to date? There is a licence cost to use, but is very reasonable, however I feel uncomfortable paying for a product when there is no information about the company/group who are producing this product.
Example of similarity to PdfSharp (from their Samples - Unicode example program):
// The current implementation of ZetPDF is limited to left-to-right languages.
// Languages like Arabic cannot yet be created even with Unicode fonts. Also the so called
// CJK (Chinese, Japanese, Korean) support in PDF can also not be addressed with PDF sharp.
// However, we plan to support as much as possible languages with ZetPDF. If you are a
// programmer and a native speaker of one of these languages and you like to create PDF
// documents in your language, you can help us to implement it in ZetPDF. You don't have
// to do the programming, but just help us to verify our implementation.
The above is very similar to what is in PDF Sharp notes, and even has PDF Sharp words in the text. I don't really have a problem with this, as really like how PDF Sharp works, but is this project just PDF Sharp in disguise?
I would like to find out a bit more about ZetPDF before I invest time and effort into seeing if it is better than PdfSharp, or really does everything I need, even in .Net Core.
来源：https://stackoverflow.com/questions/52080208/zetpdf-does-anyone-know-the-background-of-this-product