TIFF

Definition

TIFF (Tagged Image File Format) is a flexible raster image file format that supports lossless compression, high color depth, multiple pages within a single file, and extensive embedded metadata, making it a long-standing standard in publishing, scanning, and archival imaging workflows. Its tag-based structure lets applications store additional data alongside pixel content without breaking backward compatibility with older readers or software.

Overview

Print publishing, professional photography, and document scanning workflows have needs that consumer image formats often do not fully serve: preserving every bit of captured detail without generational quality loss, supporting very high resolutions and color depths, and carrying rich embedded metadata about color profiles, resolution, and provenance information. TIFF was designed specifically to meet those requirements at a time when formats optimized for compact file size and screen display, rather than archival fidelity, were becoming increasingly common across the industry at large. Structurally, a TIFF file consists of an image file header followed by one or more image file directories, each holding a list of tags — key-value metadata entries describing everything from image dimensions and color space to compression method and custom vendor-specific data. This tag-based design is what gives the format its name and its flexibility: software can read the tags it understands and safely ignore unfamiliar ones, which is also why TIFF supports both uncompressed data and multiple compression schemes, including fully lossless options, all within the same extensible container format used across decades of software. Compared to other raster formats, TIFF differs from JPEG in prioritizing lossless fidelity over small file size, and differs from PNG in its longer history in professional printing and scanning software and its support for multi-page documents in a single file, a feature PNG lacks entirely and has never added. It is not designed for web delivery, where its large file sizes and inconsistent browser support make JPEG, PNG, or WebP far more practical choices for everyday publishing at scale. In practice, TIFF remains common in document scanning pipelines, medical and satellite imaging, and professional photography and prepress workflows where images pass through multiple editing and printing stages and any lossy compression artifact could compound with each successive step. Multi-page TIFFs are also used to bundle scanned document pages into one file for archival systems and records-management software used by libraries and government agencies. The format's main drawback is file size: uncompressed or losslessly compressed TIFFs are substantially larger than JPEGs of the same image, making the format impractical for web pages, email attachments, or storage-constrained mobile applications. Because of this, TIFF is generally treated as a working or archival master format, with derivative JPEG or PNG versions generated afterward for distribution, sharing, and display on the web, where fast loading matters more than archival fidelity for most everyday viewers browsing casually.

Key Features

• Tag-based directory structure storing rich embedded metadata
• Supports lossless compression alongside uncompressed storage
• Handles high color depth beyond standard 8-bit-per-channel images
• Allows multiple pages or images within a single file
• Widely supported by scanning, printing, and prepress software
• Extensible format that ignores unrecognized tags safely

Use Cases

Alternatives

Frequently Asked Questions

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