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Is there an API in C # or .net for editing pdf documents?

Is there an API in C # or .net for editing pdf documents?

How do I need to get a specific text and replace it with my own text.

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NRK

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api pdf pdf-generation
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This is not possible (in a clean and reliable way), from the iTextSharp tutorial :

You cannot “parse” an existing PDF file using iText, you can only “read” its page onto a page. What does it mean? The pdf format is just a canvas, where text and graphics are placed without any structure information. As such, there are no "iText objects" in the PDF file. There will probably be a series of “lines” on each page, but you cannot restore the phrase or using these lines. [...] You cannot edit an existing PDF document by saying: for example, replace the word Louagie by Lowagie. To achieve this, you would need to know the exact location of the word Louagie, draw a white rectangle above it and draw the word Lowagie on this white rectangle. Please avoid such a “patch” working. Make your PDF file editing with Adobe.

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There are several third-party libraries (for example, Aspose (a paid tool)), but in fact there is no native API,

However, PDF is an open standard , so you can get how the file is structured and analyze it yourself.

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