PDFsharp & MigraDoc Foundation

PDFsharp - A .NET library for processing PDF & MigraDoc Foundation - Creating documents on the fly
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PostPosted: Mon Nov 25, 2024 12:05 pm 
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Joined: Mon Nov 25, 2024 11:22 am
Posts: 2
I am using:

NuGet package PDFsharp, Version= 6.2.0-preview-1
Blazor Web Assembly, .NET 8 (net8.0)

When i try to draw an image from stream to PDF from a blazor Web Assemly application I get the following error: 'MD5' is not a known hash algorithm.
The code is following:

Code:
        var stream = Assembly.GetExecutingAssembly().GetManifestResourceStream(imagePath);

        if (stream is null)
        {
            var message = $"Could not find image ({imagePath}).";
            throw new FileNotFoundException(message);
        }

        var xImage = XImage.FromStream(stream);
        page.DrawImage(xImage, xPosition, yPosition, width, height);


I can run the exact same code from a Win form application (.NET 8) and it works flawless including the image (our company logo).
I can create the exact same PDF with the blazor webassembly application, if dont draw the image (the company logo is a png file).


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PostPosted: Wed Nov 27, 2024 8:30 am 
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PDFsharp Guru
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Joined: Sat Mar 14, 2015 10:15 am
Posts: 1021
Location: CCAA
Some time ago we removed MD5 from the ImageSelector class. Change will come later this year with 6.2.0 Preview 2.

I hope Blazor supports SHA1. Do you know?

_________________
Best regards
Thomas
(Freelance Software Developer with several years of MigraDoc/PDFsharp experience)


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PostPosted: Thu Nov 28, 2024 7:00 am 
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Joined: Mon Nov 25, 2024 11:22 am
Posts: 2
Thank you very much. That is excellent.

Yes, I have tested System.Security.Cryptography.SHA1 with Blazor Web Assembly .NET 8 and it works, while MD5 gives error message.

I look forward to test 6.2.0 Preview 2 when it arrives.
The coming PDF/A feature is also valued.


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