Convert TIFF to Searchable PDF in C#
Perform optical character recognition on TIFF document and save text as TIFF document using Aspose.OCR for .NET library.
Aspose.OCR for .NET
Overview
How to convert TIFF to Searchable PDF using C#
Aspose.OCR for .NET is a powerful yet easy-to-use and cost-effective library for converting TIFF images to Searchable PDF documents. Supporting 26 languages based on Latin, Cyrillic and Chinese, its state-of-the-art optical character recognition engine provides superior recognition speed and accuracy, while isolating you from formulas, neural networks, and other complex technical details. It allows you to add OCR functionality to your .NET applications in less than 10 lines of code.
processes scanned images or even smartphone photos in TIFF format and creates TIFF documents containing recognized text. To add it to your project, you just need to install the Aspose.OCR
package in your project with the following command:
Package Manager Console Command
PM> Install-Package Aspose.OCR
Steps to Convert TIFF to Searchable PDF
With .NET OCR and just a few lines of code, you can create full-featured application that converts an TIFF image to Searchable PDF document:
- Create an instance of AsposeOcr class
- Call AsposeOCR.RecognizeImage method
- Pass the TIFF file path as parameter
- AsposeOCR.RecognizeImage returns a String or file of Searchable PDF type
System Requirements
Before running the example, make sure that .NET API compatible with NET Standard 2.0 specification is installed on your system and all external dependencies of Aspose.OCR package are referenced in your project.
- NET Standard 2.0+ compatible solution
- Aspose.OCR for .NET referenced in your project.
This sample code shows TIFF to Searchable PDF .NET Conversion
// initialize an instance of AsposeOcr
AsposeOcr ocr = new AsposeOcr();
// recognize image
string riText = ocr.RecognizeImage("template.TIFF");
// print text
File. File.WriteAllText("document.Searchable PDF", riText);
TIFF What is TIFF File Format
TIFF or TIF, Tagged Image File Format, represents raster images that are meant for usage on a variety of devices that comply with this file format standard. It is capable of describing bilevel, grayscale, palette-color and full-color image data in several color spaces. It supports lossy as well as lossless compression schemes to choose between space and time for applications using the format. The format is extensible and has underwent several revisions that allows the inclusion of an unlimited amount of private or special-purpose information. The format is not machine dependent and is free from bounds like processor, operating system, or file systems.
Read MoreSearchable PDF What is Searchable PDF File Format
Searchable PDF files retain the original scanned image for viewing, as well as OCR text in a hidden layer that can be used for full-text searches within a document or highlighting text for copy and paste operations. Full OCR conversion to PDF, not including the original image, will never retain 100% of the original formatting, especially if the document has many images or a complex layout.
Read MoreOther Supported Conversions
Using C#, one can easily convert different formats including.