PeachPDF

PngPassthroughInfo Struct

The raw, CRC-validated PNG chunk data needed to embed a PNG’s compressed pixel stream directly into another container (e.g. a PDF /FlateDecode image stream) without inflating/deflating it. See TryRead(Stream, PngPassthroughInfo).

public readonly record struct PngPassthroughInfo : System.IEquatable<PeachImage.Formats.Png.PngPassthroughInfo>

Implements System.IEquatable<PngPassthroughInfo >

Constructors
PngPassthroughInfo(int, int, PngColorType, byte, bool, bool, bool, byte[], byte[], byte[], byte[])	The raw, CRC-validated PNG chunk data needed to embed a PNG’s compressed pixel stream directly into another container (e.g. a PDF `/FlateDecode` image stream) without inflating/deflating it. See TryRead(Stream, PngPassthroughInfo).

Properties
BitDepth	IHDR bit depth.
ColorType	IHDR color type.
HasTrns	Whether a `tRNS` chunk is present.
Height	IHDR height, in pixels.
IccProfileData	The inflated ICC profile bytes from an `iCCP` chunk (already zlib-decompressed — unlike every other field on this type, since the profile itself is stored compressed in the file and there is no byte-for-byte “verbatim” form to hand back), or null if no `iCCP` chunk is present or it could not be parsed/decompressed.
IdatData	The concatenated, CRC-validated `IDAT` chunk payloads, in file order — a complete zlib (RFC 1950) stream, byte-for-byte as it appears in the file.
IsAnimated	Whether an `acTL` chunk is present (the file is an APNG). IdatData is still the default image’s data; PeachImage does not interpret animation frames.
IsInterlaced	Whether IHDR declares Adam7 interlacing. Adam7 data cannot be used as a PDF image stream as-is.
PaletteData	The raw `PLTE` chunk bytes (tightly packed RGB triples), or null if ColorType is not Palette.
TrnsData	The raw `tRNS` chunk bytes, or null if HasTrns is false.
Width	IHDR width, in pixels.