Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Possible null reference argument for parameter 'key' in 'CellBorderInfo Dictionary<string, CellBorderInfo>.this[string key]'.

Possible null reference argument for parameter 'Style' in 'BorderSide.BorderSide(string Style, PdfColor? Color)'.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'footerFormat' in 'void ExcelToPdfConverter.RenderPageFooter(IReadOnlyList<PdfPage> pages, string footerFormat, int startPage, int endPage, int totalPages, float footerY, float marginL, float marginR)'.

Possible null reference argument for parameter 's' in 'bool NetFxPolyfills.Contains(string s, string value, StringComparison comparison)'.

Possible null reference argument for parameter 'key' in 'bool Dictionary<string, XDocument>.TryGetValue(string key, out XDocument value)'.

Possible null reference argument for parameter 'preferredFontName' in 'void PdfWriter.PrioritizePreferredCjkFont(List<string> candidatePaths, string preferredFontName)'.

Possible null reference argument for parameter 'footerFormat' in 'void ExcelToPdfConverter.RenderPageFooter(IReadOnlyList<PdfPage> pages, string footerFormat, int startPage, int endPage, int totalPages, float footerY, float marginL, float marginR)'.

Possible null reference argument for parameter 'key' in 'bool Dictionary<string, XDocument>.TryGetValue(string key, out XDocument value)'.