io7.FreePDF.Layout 7.3.0

FreePDF

FreePDF is a drop-in replacement for PDFsharp and MigraDoc 6.2.4 that stays under the MIT licence. PDFsharp 6.5 and 7.0 are licensed under the AGPL or a commercial licence; FreePDF continues from the last MIT source, and most applications switch by replacing the package references. It is maintained independently by io7 and is not an empira release. Original copyright notices and the MIT licence are retained. New fixes use independent reproductions; see PROVENANCE.md.

The namespaces and assembly names remain PdfSharp and MigraDoc. Replace upstream package references when migrating, and use one variant only: the portable, GDI and WPF packages define the same types, so an application must resolve exactly one implementation of those assemblies. The v7 API changes still require review when migrating from PDFsharp 6.x. See the migration guide and support policy: https://github.com/io7/FreePDF/blob/main/docs/migrating-to-7.md https://github.com/io7/FreePDF/blob/main/docs/support-policy.md Use the published NuGet packages or the packages attached to an official GitHub release. CI rehearsal artifacts and a plain version label alone are not release evidence.

The portable packages target .NET 8, 9, 10 and .NET Standard 2.0; Framework consumers use the Standard assets, and install tests cover .NET Framework 4.6.2 and 4.7.2 on Windows. The GDI and WPF packages target Windows .NET 8, 9, 10 and .NET Framework 4.6.2; install tests cover net8.0-windows and .NET Framework 4.7.2. Use .NET 10 for new applications. Microsoft ends .NET 8/9 runtime servicing on 2026-11-10; library compatibility does not extend runtime servicing. https://dotnet.microsoft.com/en-us/platform/support/policy/dotnet-core

Without an IFontResolver, the portable packages use the fonts installed on Windows, Linux and macOS, and substitute Liberation or DejaVu fonts for Arial, Times New Roman and Courier New where those are missing. Set an IFontResolver for identical output on every machine. The GDI and WPF variants use the fonts installed on Windows. The comparison lab and its external renderer are not package dependencies.

Validation covers original PDF regressions, semantic save/reopen checks, installed-package workflows, render comparisons and independent output checks. PDF/A-1b/2b/3b fixture conformance and CMS integrity tests do not certify arbitrary documents, trusted signer identity or legal signature status. No PDF/UA, secure-redaction, complex-script shaping or FIPS certification is claimed.