👁 Image
FieldCure.DocumentParsers.Imaging 1.0.0

FieldCure.DocumentParsers.Imaging

PDF page image rendering — extension for FieldCure.DocumentParsers.

Core DocumentParsers v2.0 ships with pure-managed PDF text extraction (PdfPig). This package adds page image rendering via PDFtoImage (PDFium native) — useful for vision models, thumbnails, or feeding OCR engines.

Install

dotnet add package FieldCure.DocumentParsers.Imaging

Quick Start

using FieldCure.DocumentParsers;
using FieldCure.DocumentParsers.Imaging;

// Registers PdfImageRenderer, upgrading the factory's .pdf entry
// from text-only PdfParser to a full IMediaDocumentParser.
DocumentParserFactoryImagingExtensions.AddImagingSupport();

var parser = (IMediaDocumentParser)DocumentParserFactory.GetParser(".pdf")!;

// Text extraction (same pipeline as the core package — no regression).
var text = parser.ExtractText(File.ReadAllBytes("document.pdf"));

// Page rendering (new capability).
var images = parser.ExtractImages(File.ReadAllBytes("document.pdf"), dpi: 150);
foreach (var img in images)
 File.WriteAllBytes($"{img.Label}.png", img.Data);

Native Dependency

PDFium binaries are bundled via the PDFtoImage package (Windows/Linux/macOS). For pure managed deployments or environments where native PDFium cannot load, use the core FieldCure.DocumentParsers package directly — text extraction does not require this package.

Related Packages

• FieldCure.DocumentParsers — Core text extraction (DOCX/HWPX/XLSX/PPTX/HTML/PDF)
• FieldCure.DocumentParsers.Ocr — Tesseract OCR fallback for scanned PDFs

License

MIT — Copyright (c) 2026 FieldCure Co., Ltd.