Skip to main content
SearchCtrl K
Community

Source code

OfficeIMO.NET libraries, CLI, Studio and browser tools 569 stars PSWriteOfficePowerShell module 164 stars

Talk and help

DiscordQuestions, ideas and show and tell Report an issueBugs and feature requests SponsorFund ongoing development

Mode

Background

Search OfficeIMO

Enter a topic, API type, or PowerShell command.

Search the whole siteOpen search page →
Documentation Search all OfficeIMO/

API Reference

Class

PdfImageOcrExtensions

Edit on GitHub
Namespace OfficeIMO.Pdf.Ocr
Assembly OfficeIMO.Pdf.Ocr
Source ../../../../_/OfficeIMO.Pdf.Ocr/PdfImageOcrExtensions.cs:24
Modifiers static

Recognizes standalone raster images through the canonical positioned-text reconstruction pipeline.

Inheritance

  • Object
  • PdfImageOcrExtensions

Remarks

Recognition uses the source resolution, rather than rendering a PDF intermediate. The resulting logical document can be passed to existing Word, Excel, HTML and other format adapters. Animated and multi-page images are rejected; supply separate static sources when every frame or page is required.

Methods

public static async Task<PdfSearchableOcrResult> MakeSearchableAsync(PdfImageDocumentSource image, IOcrEngine engine, PdfOcrMergeOptions options = null, CancellationToken cancellationToken = default) #
Returns: Task<PdfSearchableOcrResult>

Creates an in-memory searchable PDF preserving the image and adding all accepted OCR words.

Parameters

image OfficeIMO.Pdf.PdfImageDocumentSource requiredposition: 0
engine OfficeIMO.Ocr.IOcrEngine requiredposition: 1
options OfficeIMO.Pdf.Ocr.PdfOcrMergeOptions = null optionalposition: 2
cancellationToken System.Threading.CancellationToken = default optionalposition: 3
public static Task<PdfSearchableOcrReview> PrepareSearchableOcrAsync(PdfImageDocumentSource image, IOcrEngine engine, PdfOcrMergeOptions options = null, CancellationToken cancellationToken = default) #
../../../../_/OfficeIMO.Pdf.Ocr/PdfImageOcrExtensions.cs:24
Returns: Task<PdfSearchableOcrReview>

Recognizes an image and retains a private image-page snapshot for review and searchable PDF generation.

Parameters

image OfficeIMO.Pdf.PdfImageDocumentSource requiredposition: 0
engine OfficeIMO.Ocr.IOcrEngine requiredposition: 1
options OfficeIMO.Pdf.Ocr.PdfOcrMergeOptions = null optionalposition: 2
cancellationToken System.Threading.CancellationToken = default optionalposition: 3
public static async Task<PdfOcrMergeResult> ReadWithOcrAsync(PdfImageDocumentSource image, IOcrEngine engine, PdfOcrMergeOptions options = null, CancellationToken cancellationToken = default) #
Returns: Task<PdfOcrMergeResult>

Recognizes a captured image and reconstructs editable text and tables without writing an output file.

Parameters

image OfficeIMO.Pdf.PdfImageDocumentSource requiredposition: 0
engine OfficeIMO.Ocr.IOcrEngine requiredposition: 1
options OfficeIMO.Pdf.Ocr.PdfOcrMergeOptions = null optionalposition: 2
cancellationToken System.Threading.CancellationToken = default optionalposition: 3