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#1 Posted : Tuesday, May 11, 2021 1:38:46 PM(UTC)

Groups: Registered
Posts: 8

I'm testing the evaluation version for converting MODCA documents. The Document Converter sample program works perfectly, but when I use the SDK from my own .NET 4.7.1 project I get two job errors complaining about the missing codec. The library does exist in my project's output bin folder.

Any ideas? My code is essentially this:


            string licenseFilePath = "LEADTOOLS.LIC";
            string developerKey = System.IO.File.ReadAllText("LEADTOOLS.LIC.KEY");
            RasterSupport.SetLicense(licenseFilePath, developerKey);

            var path = fileInfo.FullName;
            var newPath = @"C:\tmp\modca-pdf\" + serialNumber + ".pdf";
            var newFileInfo = new FileInfo(newPath);

            var converter = new DocumentConverter();
            var rasterCodecs = new RasterCodecs();
            rasterCodecs.Options = DocumentFactory.RasterCodecsTemplate.Options.Clone();
            DocumentFactory.RasterCodecsTemplate = rasterCodecs;
            var documentWriter = new DocumentWriter();
            converter.LoadDocumentOptions = new LoadDocumentOptions();
            converter.Options.JobErrorMode = DocumentConverterJobErrorMode.Continue;
            converter.Options.EnableSvgConversion = true;
            converter.Options.SvgImagesRecognitionMode = DocumentConverterSvgImagesRecognitionMode.Disabled;
            converter.Options.UseThreads = true;
            converter.Diagnostics.EnableTrace = true;

            var jobData = new DocumentConverterJobData
                InputDocumentFileName = path,
                //Document = document,
                InputDocumentFirstPageNumber = 1,
                InputDocumentLastPageNumber = -1,
                DocumentFormat = Leadtools.Document.Writer.DocumentFormat.Pdf,
                RasterImageFormat = RasterImageFormat.Unknown,
                RasterImageBitsPerPixel = 24,
                OutputDocumentFileName = newPath,
                //AnnotationsMode = OutputAnnotationsMode.None,
                //OutputAnnotationsFileName = this.OutputAnnotationsFileName,
                JobName = "blah",
                UserData = null,

            //jobData.InputAnnotationsFileName = this.InputAnnotationsFileName;

            var job = converter.Jobs.CreateJob(jobData);
            foreach (var error in job.Errors)
                _log.Error(error.Error, "Conversion error");

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#2 Posted : Tuesday, May 11, 2021 4:40:31 PM(UTC)
Marcus Andra

Groups: Registered, Manager, Tech Support, Administrators
Posts: 107

Was thanked: 9 time(s) in 9 post(s)


Thanks for letting us know about this issue. If you are working through a .NET application, for debugging purposes, I would recommend changing your project build Output path to C:\LEADTOOLS21\Bin\Dotnet4\x64. This is the default file path, after installing the LEADTOOLS main SDK, where you can find all of the DLLs for use in a .NET Framework application. This will make it so when you run your application, it will pull any additional DLLs that you may need in your application which you can make note of. It sounds like your application is expecting additional LEADTOOLS DLLs to exist; however, it cannot find them. Doing this however should give you a good indicator on how to proceed.

If this change does not work for you, please let us know so that we may help you debug further.


Marcus Andra
Developer Support Engineer
LEAD Technologies, Inc.
#3 Posted : Wednesday, May 12, 2021 9:49:39 AM(UTC)

Groups: Registered
Posts: 8

For some reason the AnyCPU build of my solution was getting the wrong native libraries copied to the bin folder (x64 version), whereas the AnyCPU build of the DocumentConverterDemo was getting the right version (x86).
I added x86 and x64 platforms to my solution and they both build and run correctly.
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