Create Searchable PDFs by OCR
using IronOcr;

var ocrTesseract = new IronTesseract();

using var ocrInput = new OcrInput();

ocrInput.LoadImage(@"images\page1.png");
ocrInput.LoadImage(@"images\page2.bmp");

var page = new int[]{ 2, 3 };
ocrInput.LoadImageFrames(@"images\page3.tiff", page);

ocrInput.Deskew();

var ocrResult = ocrTesseract.Read(ocrInput);

ocrResult.SaveAsSearchablePdf("searchable.pdf");
NuGet Download
PM > Install-Package IronOcr
Create Searchable PDFs by OCR

Create Searchable PDFs by OCR

We can use Iron's advanced Tesseract engine to convert images to searchable PDFs. It can also make existing PDFs searchable.

This adds to SEO performance and internal search indexing within intranets and databases.

How to Create Searchable PDFs with IronOCR Tesseract

  1. Install the OCR library to create searchable PDFs.
  2. Create an OcrInput object and use LoadImage to register the image path.
  3. Call all the required methods to process the image.
  4. Use the Read method on an IronTesseract instance, passing the OcrInput object.
  5. Call SaveAsSearchablePdf to save the images as a single PDF.
Explore How to Create Searchable PDFs with IronOCR
View on GitHub

Ready to Get Started?

Nuget Downloads 6,337,990Version:2026.10just released

Free NuGet Download
Total downloads: 6,337,990