Image
Tagged Image File Format is a image format commonly identified by .tif, .tiff. Use the listed signatures, MIME types, and structure notes to validate files beyond the extension.
49 49 2A 00 II*.4D 4D 00 2A MM.*SIGNATURE = bytes.fromhex("49492a00")
OFFSET = 0
def is_tif(path: str) -> bool:
with open(path, "rb") as f:
f.seek(OFFSET)
head = f.read(len(SIGNATURE))
return head == SIGNATUREconst SIGNATURE = [0x49, 0x49, 0x2a, 0x00];
const OFFSET = 0;
// bytes: a Uint8Array / Buffer holding the start of the file
export function isTif(bytes) {
return SIGNATURE.every((byte, i) => bytes[OFFSET + i] === byte);
}package fileid
import "bytes"
var istifSignature = []byte{0x49, 0x49, 0x2a, 0x00}
const istifOffset = 0
func IsTif(b []byte) bool {
end := istifOffset + len(istifSignature)
if len(b) < end {
return false
}
return bytes.Equal(b[istifOffset:end], istifSignature)
}const SIGNATURE: &[u8] = &[0x49, 0x49, 0x2a, 0x00];
const OFFSET: usize = 0;
fn is_tif(bytes: &[u8]) -> bool {
bytes.get(OFFSET..OFFSET + SIGNATURE.len()) == Some(SIGNATURE)
}<?php
$signature = "\x49\x49\x2a\x00";
$offset = 0;
function is_tif(string $bytes): bool {
global $signature, $offset;
return substr($bytes, $offset, strlen($signature)) === $signature;
}Tagged Image File Format is commonly used for image previews, thumbnails, metadata checks, and upload validation. Test multiple sizes because resolution, alpha support, compression, and file size often affect implementation behavior.
Media files can still stress decoders through corrupt metadata, extreme dimensions, long durations, or unusual chunks. Read size, dimensions, and duration before processing.
11 samples help test tiny images, high-resolution images, alpha channels, and hard-to-compress assets.
Flower Garden TIFF is a Tagged Image File Format sample based on Wikimedia Commons, 960 x 540. It can be used to test downloads, parsers, previews, and file type detection.
flower-garden.tiff88754b06e3ee17750e853bc38a4d6d94edcd0ed40e6dcceff4456de741e370b7Blue Sky TIFF is a Tagged Image File Format sample based on Wikimedia Commons, 96 x 72. It can be used to test downloads, parsers, previews, and file type detection.
01-blue-sky.tiff983fb566be4e399e83c248c1623dd3896f3ad75d6d3f9b895cea56c1fb4c7158Flower Garden TIFF is a Tagged Image File Format sample based on Wikimedia Commons, 160 x 90. It can be used to test downloads, parsers, previews, and file type detection.
02-flower-garden.tiff44ddf988932de1263418bd4b9b02026d791e416c1c4b223cd5bf534d104686acNavy Blue Sky TIFF is a Tagged Image File Format sample based on Wikimedia Commons, 256 x 128. It can be used to test downloads, parsers, previews, and file type detection.
03-navy-blue-sky.tiff23bc959d76eb00664556ac73a68f52bc79adbfc80f59dfd6bb62fd3f6958531dNature of the Sky TIFF is a Tagged Image File Format sample based on Wikimedia Commons, 360 x 270. It can be used to test downloads, parsers, previews, and file type detection.
04-nature-sky.tiffddfd15399aebbb258044ea3801c8a258cfdac932794d742ba67e71ad3782a9e2Sky Landscape TIFF is a Tagged Image File Format sample based on Wikimedia Commons, 512 x 384. It can be used to test downloads, parsers, previews, and file type detection.
05-sky-landscape.tiffe6ad834f63e2a7e8636b893ff519b49b31337e6e44adb3618dfbd51586ebdfc7Starry Sky TIFF is a Tagged Image File Format sample based on Wikimedia Commons, 720 x 480. It can be used to test downloads, parsers, previews, and file type detection.
06-starry-sky.tiff31a075b8fb689e7bc18f4c2c22e3fa47bb055c874601e9c68ce747cae80b58baBlue Night Sky TIFF is a Tagged Image File Format sample based on Wikimedia Commons, 960 x 640. It can be used to test downloads, parsers, previews, and file type detection.
07-blue-night-sky.tiff000918090886710faf9fdfa7441941dcc1abd3dbf4f255e21ebbcc7211392d35Hibiscus Flower TIFF is a Tagged Image File Format sample based on Wikimedia Commons, 1280 x 2770. It can be used to test downloads, parsers, previews, and file type detection.
08-hibiscus-flower.tiff11c381ee8f13c7dcc1a7996f4f22aaae4edb51f7d35ac736d409e96f852da395Arctic Sky TIFF is a Tagged Image File Format sample based on Wikimedia Commons, 1600 x 1062. It can be used to test downloads, parsers, previews, and file type detection.
09-arctic-sky.tiff4ed27a4ede711743fa19c0c028e037695f79a8408631eea0eb6e3a13ffb15ac7NASA Blue Marble TIFF is a Tagged Image File Format sample based on NASA Image and Video Library, 640 x 640. It can be used to test downloads, parsers, previews, and file type detection.
nasa-blue-marble-2012-east.tiff01c81929499c9f937d464d509f8ad7b7de931f7d7a0a021cf56f79e8aefb0ae4Tagged Image File Format files begin with the byte signature 49 49 2A 00 ("II*.") or 4D 4D 00 2A ("MM.*"). Detect the format by reading these leading bytes rather than trusting the file extension alone.
The MIME type for Tagged Image File Format is image/tiff.
Tagged Image File Format files use the .tif, .tiff extension. The extension is a convention only and does not guarantee the file contents, so combine it with signature and structure checks.