Install

One command. The package is on NuGet today.

dotnet add package PDFluent --version 1.1.0

Smoke test

Open a PDF, print the page count. The example below is the smallest useful program — copy, paste, run.

csharp

using PDFluent;

using var doc = PdfDocument.Open("invoice.pdf");
Console.WriteLine($"{doc.PageCount} pages");

Structured extraction (Preview)

PreviewIn .NET, structured extraction returns Markdown from doc.ExtractMarkdown, blocks as a JSON string from doc.ExtractBlocks, and Docling JSON from ExtractDocling. Structured extraction ships as Preview: output quality is still improving and the API may change in a minor release.

Markdown: doc.ExtractMarkdown(firstPage, pageCount).
Blocks: doc.ExtractBlocks(...) returns a JSON string.
Docling JSON: ExtractDocling(firstPage, pageCount, name).
Image extraction is available.

What this is good for

C# and F# applications on .NET 6 and newer
Existing .NET document-processing pipelines
On-premise enterprise back-office workloads

Current limitations

This list is honest, not exhaustive. The site-wide list lives at Known limitations.

Pin the package version for reproducible builds.
XFA rendering fidelity is improving alongside the Rust core.
Native binaries currently ship for common runtimes; some less common RIDs may need a build step.

Licensing

PDFluent is published under the AGPLv3 and is complete under it. A yearly commercial licence removes the obligation to publish your own source; nothing in the build differs and nothing is activated, so a lapsed licence breaks nothing you have shipped. Details on the licensing page.

PDFluent for .NET