using IronOcr;
using IronPdf;
using System;
ChromePdfRenderer renderer = new ChromePdfRenderer();
PdfDocument pdf = renderer.RenderHtmlAsPdf("<h1> Iron Software </h1>");
var ocrTesseract = new IronTesseract();
using var ocrInput = new OcrInput();
ocrInput.LoadPdf(pdf.Stream);
var ocrResult = ocrTesseract.Read(ocrInput);
Console.WriteLine(ocrResult.Text);
Imports IronOcr
Imports IronPdf
Imports System
Dim renderer As New ChromePdfRenderer()
Dim pdf As PdfDocument = renderer.RenderHtmlAsPdf("<h1> Iron Software </h1>")
Dim ocrTesseract As New IronTesseract()
Using ocrInput As New OcrInput()
ocrInput.LoadPdf(pdf.Stream)
Dim ocrResult = ocrTesseract.Read(ocrInput)
Console.WriteLine(ocrResult.Text)
End Using
IronOCR also supports Stream.
In this example, IronPDF is used to create a PDF Stream that can later be used for text recognition by IronOCR.
Please note that IronOCR supports reading Stream as an input, and can also export results to a Stream, for example via SaveAsSearchablePdfStream.
Nuget Downloads 6,279,416|Version:2026.10just released
IronOCR is a part of IRONSUITE
10 .NET API products for your office documents
Tesseract OCR in the languages you need, We support 125+.
