ThomasHoevel

Please use the GitHub Issues only for issues like - Bugs in PDFsharp and/or MigraDoc - Bug fixes - Improvement suggestions Please use discussions to ask "How do I" questions...

Adam7 fails for paletted images

2

[logo.zip](https://github.com/EliotJones/BigGustave/files/14209216/logo.zip) When opening the attached image after applying the patch from issue #13 (https://github.com/EliotJones/BigGustave/issues/13#issue-1780247532), the library fails while reading the image. The image is interlaced using Adam7.

Bug fix for interleaved image with 16 colors. New feature: access palette index for images with color palettes. Added nullable reference types. Slight reformatting to company standards.

Adam7 with Paeth filter not working correctly

1

https://github.com/EliotJones/BigGustave/blob/6fac44124e4086c45d6a332866570fc905bcae24/src/BigGustave/Decoder.cs#L47 I found an issue with this line 47: `var previousStartRowByteAbsolute = -1;` Problem is: The Paeth filter refers to the line above and with "-1" it finds data in...

https://github.com/EliotJones/BigGustave/blob/6fac44124e4086c45d6a332866570fc905bcae24/src/BigGustave/RawPngData.cs#L48 Line 48 is: `var bytesInRow = (1 + (width / pixelsPerByte));` In my opinion it should be: `var bytesInRow = (1 + ((width + pixelsPerByte - 1) / pixelsPerByte));`...

warning NU1903: Package 'System.Formats.Asn1' 8.0.0 has a known high severity vulnerability

1

After updating Visual Studio and Windows, we saw this warning while compiling: warning NU1903: Package 'System.Formats.Asn1' 8.0.0 has a known high severity vulnerability, https://github.com/advisories/GHSA-447r-wph3-92pm To resolve this issue when compiling...