Use cases Leave feedback
Each page here answers one whole question — the design, the code that runs, and the parts that are easy to get wrong — and links to a repository you can clone and run.
- Write AI review comments into documents — turn a model’s
{quote, comment}findings into highlights with reply threads, in PDF, Word, Excel and PowerPoint. - Build an annotation UI for your web app — page images, a canvas and four endpoints, with no viewer component and no front-end framework.
New to the library? Start with Annotate a PDF in C#.
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