Convert XLSX to PDF in C#

XlsxToPdfConverter renders an Excel workbook to PDF, with no Excel and no LibreOffice. Each worksheet's own print setup decides its pages.

using DocToolkit;

byte[] xlsx = File.ReadAllBytes("input.xlsx");
byte[] pdf = XlsxToPdfConverter.Convert(xlsx);
File.WriteAllBytes("output.pdf", pdf);

What it needs

No browser, headless or otherwise.
No Office install, and no LibreOffice.
No native files: managed code only.
No network at runtime, unless you ask for it.

Good to know

Synchronous: Convert takes the .xlsx as a byte[] and returns the PDF as a byte[].
No PageSetup parameter: the workbook's per-sheet print setup is honoured.
Merged cells render; a sheet's right-to-left direction does not.
A cell holding characters the reachable fonts do not cover is refused, naming the character. Pass PdfFontOptions to supply the font.

Install

dotnet add package Ank.DocToolkit

NuGet Documentation GitHub

Other conversions

Everything DocToolkit converts