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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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Leadtools PDF viewer with continuous scroll

I'm using Leadtools SDK to build an C# WPF application that opens and shows PDF files. At the mommet I only have two requirements: Continuous scroll (like in Adobe Reader) Zoom in/out I'm having a hard time trying to figure out which is the right…
sparcopt
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(Leadtools) Rastercodecs.load is thread safe?

I want to convert a PDF to images. I am using Leadtools and to increase the speed, I am using multi-threading in the following way. string multiPagePDF = @"Manual.pdf"; string destFileName = @"output\Manual"; Task.Factory.StartNew(() => { using…
amyn
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What is the initial value of ViewPerspective after loading image using LeadTools?

When loading images using LeadTools API, what would be the initial value of ViewPerspective? My experiments with below code snippet revealed it is always BOTTOM_LEFT (4). BITMAPHANDLE LeadBitmap2; L_INT nRet = L_ConvertFromDIB(&LeadBitmap2,…
Karthik Kalyanasundaram
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Using LEADTOOLS with Java

I'd like to manipulate images (e.g., change brightness, apply sepia filter) from my Java application using LEADTOOLS. The app is supposed to run on both Windows (>=7) and Mac OS. I know that Java is not officially supported but I've seen that there…
Matthias Braun
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Export leadtools scanner image to disk (jpg or bmp format)

I am using leadtools to get image from scanner driver, how can I save that image to disk (jpg or bmp or any format)? I am using these dll files: - Leadtools.dll - Leadtools.Twain.dll - Leadtools.Codecs.dll - Leadtools.WinForms.dll -…
Rabee Alrabee
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How to reference LeadTools to Unit Test project?

Evaluating Document Imaging SDK, I'm trying to create a unit test project in my Visual Studio 2012 to check some code snippets. I have referenced LeadTools dlls from installation directory 'C:\LEADTOOLS 18\Bin\Dotnet4\Win32' and pointed my unt test…
Dmitry Pavlov
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LEADTOOLS adding QRBarcode to an existing image

My current code writes a qr code but it over writes my file with just the qr code. I am not sure how to adjust the size of the qr code to be placed in one corner of the document rather than taking up the whole page. Also not sure if the…
Masriyah
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using LEADTOOLS to convert doc to pdf

I am playing around with Leadtools to see how it might benefit me but i am a little frustrated with their documentation regarding how the process works. I am creating a library with methods that take an input file, convert it to pdf, add a qrcode to…
Masriyah
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How to convert a bitmap into a rasterimage from leadtools

I am trying to convert a screenshot from my screen as a bitmap into a rasterimage public static RasterImage TakeScreenShot() { // Capture a screenshot of the area of the screen containing the pixel using (Bitmap…
Fabio
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L_LineRemoveBitmap returns an empty HRGN

I'm trying to use Leadtools Version 20 to automatically cleanup some images (black border removal, line removal, deskew, ...). Since some of the APIs only work with black and white images, I create a copy of the image in memory and turn it black and…
Sam
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DICOM RetrieveURL tag is empty in JSON output

I am using a DicomDataSet to add tags and their values as below following: .... var ds = new DicomDataSet(); ds.Initialize(DicomClassType.StudyRootQueryStudy,…
Aria
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WPF Cropping a portion of an image

I have created a WPF application where I need to allow a user to draw a rectangle on an existing loaded image(tif image) and have it save the coordinates/the portion of the rectangle as a separate image. I am using the Leadtools.Windows.Controls…
Darthchai
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Need to scans both sides of document using Leadtools WIA

I can only scan one side of the document but not the second side. What are settings I need to achieve both side of scan using Wia Leadtools. WiaAcquireFlags flags = WiaAcquireFlags.None; bool showProgress = true; _progressDlg = new…
Cute Sparrow
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WIA Leadtools SDK scan two pages but generate 1 images in output folder

I am using WIA Demo "C:\LEADTOOLS 19\Examples\DotNet\CS\WiaDemo" for scanning multiple documents(put two documents in scanner). When I scanned two documents then it only saves one document in output folder. During scanning it shows(scanning 1 and…
Cute Sparrow
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Missing artifact leadtools:ocr:jar:1.0

I have added the jars of leadTools in my maven project and have stored those jars locally in my .m2 folder. But in pom.xml, I am getting the following error - Missing artifact leadtools:ocr:jar:1.0 Here's my customised dependency - …
chitwan
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