Complete implementation of the Pdftract NuGet package as a subprocess-
based SDK with async-first design using System.Diagnostics.Process and
System.Text.Json.
Implementation:
- All 9 contract methods (ExtractAsync, ExtractTextAsync, etc.) with sync
wrappers in Pdftract.Sync.cs
- 8 exception types inheriting from PdftractException base class
- Source discriminated union (PathSource, UrlSource, BytesSource) with
FromPath, FromUrl, FromUri, FromBytes factory methods
- C# record types for all models (Document, Page, Metadata, etc.)
- ExtractOptions, SearchOptions, HashOptions with PascalCase properties
- Source-generated JSON serialization via JsonContext for Native AOT
- IAsyncEnumerable streaming for NDJSON outputs
- CancellationToken propagation to Process.Kill(entireProcessTree: true)
Bug fixes:
- Fixed ArgumentList handling (was adding List as single element)
- Added source.Dispose() cleanup for BytesSource temporary files
- Added cleanup for VerifyReceiptAsync temporary receipt file
- Added process.EnableRaisingEvents for proper event handling
- Fixed output capture to include newlines between lines
- Changed to source-generated JSON (JsonContext) instead of reflection
Acceptance criteria:
- All 9 methods exposed as both async and sync variants
- All 8 exception classes inherit from PdftractException
- Models as C# records
- Supports net8.0 and net9.0
- CancellationToken terminates subprocess
Files modified:
- pdftract-dotnet/src/Pdftract/Pdftract.cs
- pdftract-dotnet/src/Pdftract/Pdftract.Sync.cs
- pdftract-dotnet/src/Pdftract/Source/Source.cs
- pdftract-dotnet/src/Pdftract/Models/Document.cs
- pdftract-dotnet/src/Pdftract/Models/JsonContext.cs
- pdftract-dotnet/tests/Pdftract.Tests/ConformanceTests.cs
- pdftract-dotnet/README.md
- pdftract-dotnet/notes/pdftract-1w22d.md
Co-Authored-By: Claude Code <noreply@anthropic.com>
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