Class PdfImageExtractionProcessor

Provides functionality to extract images from PDF documents (e.g. to generate thumbnails) by rendering a page to a PNG image using the PDFium renderer.

Inheritance

object

FileProcessor

PdfImageExtractionProcessor

Implements

IFileProcessingPipelineProvider

IFileProcessingPipelineSelector

Inherited Members

FileProcessor.ProcessorName

FileProcessor.ToPipeline(SourceBufferingMode, bool, bool)

FileProcessor.WithVariant(string, IFileProcessingPipelineProvider)

Namespace: FulcrumFS.Pdf

Assembly: FulcrumFS.Pdf.dll

Syntax

public sealed class PdfImageExtractionProcessor : FileProcessor, IFileProcessingPipelineProvider, IFileProcessingPipelineSelector

Constructors

Name

Description

PdfImageExtractionProcessor(PdfImageExtractionProcessingOptions)

Initializes a new instance of the PdfImageExtractionProcessor class with the specified options. Note: if you want to do source PDF validation, you need to use a FileFormatValidationProcessor configured with Pdf first and chain this after it, as this class does not perform any validation itself, it just extracts an image from the provided PDF document. Note: PDF rendering is serialized process-wide because the underlying PDFium library is not thread-safe, so only one PDF page can be rendered at a time within the process.

Properties

Name	Description
AllowedFileExtensions	Gets the file extensions that this processor allows, including the leading dot (e.g., ".jpg", ".png"), or an empty collection if all file extensions are allowed.
Options	Gets the options used to configure this PdfImageExtractionProcessor.

Methods

Name	Description
ProcessAsync(FileProcessingContext)	Processes the file represented by the specified FileProcessingContext.