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Do not slice the stream to the length breaks decoding in FlateDecode #1194

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Merged
BobLd merged 1 commit into from
Oct 29, 2025
Merged

Do not slice the stream to the length breaks decoding in FlateDecode #1194

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8 changes: 0 additions & 8 deletions src/UglyToad.PdfPig/Filters/FlateFilter.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -45,14 +45,6 @@ public Memory<byte> Decode(Memory<byte> input, DictionaryToken streamDictionary,
var bitsPerComponent = parameters.GetIntOrDefault(NameToken.BitsPerComponent, DefaultBitsPerComponent);
var columns = parameters.GetIntOrDefault(NameToken.Columns, DefaultColumns);

var length = parameters.GetIntOrDefault(NameToken.Length, -1);

if (length > 0 && length < input.Length)
{
// Truncates final "\r\n" or "\n" from source data if any. Fixes detecting where the adler checksum is. (Zlib uses framing for this)
input = input.Slice(0, length);
}

return Decompress(input, predictor, colors, bitsPerComponent, columns);
}
catch
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