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Add file type detection for PDF #441

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Merged
merged 1 commit into from
May 22, 2025
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Merged

Add file type detection for PDF #441

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1 change: 1 addition & 0 deletions MetadataExtractor/PublicAPI/net462/PublicAPI.Unshipped.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -118,6 +118,7 @@ MetadataExtractor.Util.FileType.Avif = 28 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Dng = 29 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.GoPro = 30 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Kdc = 31 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Pdf = 35 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.ThreeFR = 32 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Pef = 33 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Srw = 34 -> MetadataExtractor.Util.FileType
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1 change: 1 addition & 0 deletions MetadataExtractor/PublicAPI/net8.0/PublicAPI.Unshipped.txt
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Expand Up @@ -117,6 +117,7 @@ MetadataExtractor.Util.FileType.Avif = 28 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Dng = 29 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.GoPro = 30 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Kdc = 31 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Pdf = 35 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.ThreeFR = 32 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Pef = 33 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Srw = 34 -> MetadataExtractor.Util.FileType
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1 change: 1 addition & 0 deletions MetadataExtractor/PublicAPI/netstandard1.3/PublicAPI.Unshipped.txt
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Expand Up @@ -118,6 +118,7 @@ MetadataExtractor.Util.FileType.Avif = 28 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Dng = 29 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.GoPro = 30 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Kdc = 31 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Pdf = 35 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.ThreeFR = 32 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Pef = 33 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Srw = 34 -> MetadataExtractor.Util.FileType
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1 change: 1 addition & 0 deletions MetadataExtractor/PublicAPI/netstandard2.1/PublicAPI.Unshipped.txt
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Expand Up @@ -117,6 +117,7 @@ MetadataExtractor.Util.FileType.Avif = 28 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Dng = 29 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.GoPro = 30 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Kdc = 31 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Pdf = 35 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.ThreeFR = 32 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Pef = 33 -> MetadataExtractor.Util.FileType
MetadataExtractor.Util.FileType.Srw = 34 -> MetadataExtractor.Util.FileType
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6 changes: 6 additions & 0 deletions MetadataExtractor/Util/FileType.cs
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Expand Up @@ -110,6 +110,8 @@ public enum FileType

/// <summary>SRW (Samsung) Image File Format.</summary>
Srw = 34,

Pdf = 35
}

public static class FileTypeExtensions
Expand Down Expand Up @@ -151,6 +153,7 @@ public static class FileTypeExtensions
"3FR",
"PEF",
"SRW",
"PDF"
];

private static readonly string[] _longNames =
Expand Down Expand Up @@ -190,6 +193,7 @@ public static class FileTypeExtensions
"Hasselblad Raw",
"Pentax Raw",
"Samsung Raw",
"Portable Document Format"
];

private static readonly string?[] _mimeTypes =
Expand Down Expand Up @@ -229,6 +233,7 @@ public static class FileTypeExtensions
"image/x-hasselblad-3fr",
"image/x-pentax-pef",
"image/x-samsung-srw",
"application/pdf"
];

private static readonly string[]?[] _extensions =
Expand Down Expand Up @@ -268,6 +273,7 @@ public static class FileTypeExtensions
["3fr"],
["pef"],
["srw"],
["pdf"]
];

public static string GetName(this FileType fileType)
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1 change: 1 addition & 0 deletions MetadataExtractor/Util/FileTypeDetector.cs
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Expand Up @@ -45,6 +45,7 @@ public static class FileTypeDetector
{ FileType.Pcx, [0x0A, 0x02, 0x01] },
{ FileType.Pcx, [0x0A, 0x03, 0x01] },
{ FileType.Pcx, [0x0A, 0x05, 0x01] },
{ FileType.Pdf, "%PDF"u8 },
{ FileType.Eps, "%!PS"u8 },
{ FileType.Eps, [0xC5, 0xD0, 0xD3, 0xC6] },
// NOTE several file types match this, which we handle in TryDisambiguate: DNG, GPR (GoPro), KDC (Kodak), 3FR (Hasselblad)
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