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Questions tagged [leadtools-sdk]

LEADTOOLS is a comprehensive set of imaging and multimedia SDKs for .NET, WinAPI, WinRT, Java, Linux, iOS, macOS, Android & HTML5. LEADTOOLS SDK includes support for OCR; OMR; Barcode; Forms Recognition & Processing; PDF; Document/Image Viewing, Conversion & Cleanup; Annotation; DICOM; PACS; 3D Volume; HL7; File Formats (150+); Image Compression & Processing; Color Conversion; Scanning/Capture; Printing; Audio/Video Codecs; MPEG-2; DVR; Streaming; & more.

What questions should have this tag?

Any question relating to the usage of any LEADTOOLS SDK. See below for more details.

More About LEADTOOLS SDK

LEAD Technologies is the developer and publisher of LEADTOOLS SDKs. LEADTOOLS SDKs are designed to help programmers integrate recognition, document, medical, imaging, and multimedia technologies into their desktop, server, web, and mobile applications. LEAD offers free LEADTOOLS technical support to ensure that developers using LEADTOOLS will be finished on time and on budget.

For more information or to download a free, fully functional evaluation SDK visit the LEADTOOLS Website

Additional LEADTOOLS Resources for Developers

Free, Fully Functional Evaluation SDK - Download the LEADTOOLS SDK and receive free technical support throughout your evaluation, development, and deployment of your solution.

Live Online Demos - Run live HTML5 / JavaScript demos.

Sample Programs and Examples - Get guidance for your application with thousands of code snippets, function examples, tutorials, and demo programs written for LEADTOOLS.

Apps for iOS, macOS, and Android - LEADTOOLS has published several of its demos as free application utilities to the App Store and Google Play.

Code Tips - Code tips, sample projects, and development FAQs.

81 questions
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How to convert ImageSource to Byte array?

I use LeadTools for scanning. I want to convert scanning image to byte. void twainSession_AcquirePage(object sender, TwainAcquirePageEventArgs e) { ScanImage = e.Image.Clone(); ImageSource source =…
ar.gorgin
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LEADTOOLS Barcode Generation iOS

I want to generate a barcode image for a "GS1 Databar Expanded Stack" code using LEADTOOLS iOS SDK, but I can't find a proper way to do this (or any other type of code). Their examples contains only a "reading" demo, not a "writing" one. Can anyone…
stonycis
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3 answers

Document Scanning from ASP.net Web Application

I have a ASP.Net C# 4.0 Web Application I need to Add a scanning feature for my users. This is what I want to achieve On my web application user clicks on a button opens a window with preview of document in Scanning device attached to the client…
HaBo
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1 answer

System.AccessViolationException in Asp.net with leadtools imaging api

I am getting a weird error in asp.net while using leadtools imaging api. Here's the stack trace. System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt. at…
Mahes
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3
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1 answer

An unhandled exception of type 'Leadtools.RasterException' occurred in Leadtools.Codecs.dll

I am using Lead Tool with c#. And Got error in below code. I pass this string base64String value from JS when I cropped Image and then convert it in c# in to Image with Base64ToImage function. So this is all complete code which I did. private…
Mohit Saxena
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1 answer

Leadtools - OcrException - ocr Not Enabled

I am using Leadtools OCR I referenced the following…
HelpASisterOut
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3
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1 answer

LEADTOOLS : How to add image into PDF file in a specified location

I am trying with RasterImage option to load PDF file and Save method to combine image. But i am getting invalid PDF file. Also, want to place the image in bottom corner of PDF file. Any code snippet would be great help. Thanks
user3727148
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7 answers

Could not load file or assembly 'Leadtools.Codecs', if anyone is familiar with leadtools

I get an exception on the last line of the following code (sorry for the format, won't let me post it any other way): LeadHelper.Unlock(); RasterCodecs codecs = new RasterCodecs(); string imageLocation = @"...path...\Barcodes.tif"; RasterImage…
tnw
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1 answer

How do I edit the patients data of a DICOM file using LEADTOOLS

I want to insert dummy data in dicom file without reading that file using LEADTOOLS. For ex. I want to insert Patient_Name = xyz etc. So anybody have any idea that which LEADTOOLS method is used to insert/edit patients data in a dicom file.
Namrata
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2
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1 answer

extract dimensions from PDF using OCR

I am looking for a way to programmatically examine a pdf cad drawing, plain 2D print, and pull out all the dimensions along with the locations of the dimensions on the page. I am in search of technologies that will allow me to do this. I'm looking…
Yep
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2 answers

How to play 1080p HD DICOM video @30fps

I have tried Leadtool SDK to play 1080p DICOM video @30fps, But I have problem to read images from DICOM file, it taking long time to get Image from DICOM file. If we have to achieve 30fps frame rate, then Image should be read within 33…
Nilesh Wagh
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1 answer

How to resolve System.AccessViolationException C#

I am getting an error in c# when using leadtools advantage.dll System.AccessViolationException: Attempted to read or write protected memory. it seems that it occurs randomly.
NoobNewbie
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2 answers

How to apply image effects to a JPEG in a memory buffer using LEADTOOLS 19

I'm making a Windows executable using C++, LEADTOOLS19, and VS2015 to read an image from a server, apply an image effect to it using LEADTOOLS, and display it in a browser. The server provides me the image as an array of chars containing the JPEG…
John Biddle
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2
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1 answer

LEADTOOLS uncompressing example getting an exception

I'm following the next example from the Leadtools page https://www.leadtools.com/help/leadtools/v19/dh/co/leadtools.codecs~leadtools.codecs.codecspngoptions.html The version is the 19 But I'm getting this error in visual studio, {featured not…
Jorge Zules
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1 answer

WPF Image control takes a long time to render a large image

I have an application where I am using an Image control to display a large image (~8000x8000 pixels). I have the image control bound to an ImageSource like this:
WildCrustacean
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