About TIFF (Tagged Image File Format)
TIFF dates back to 1986, created by Aldus (later absorbed into Adobe) as a common format for desktop scanners. Forty years on, it remains the standard wherever image fidelity is non-negotiable: print production, publishing, medical imaging, museum archives, and government records.
The format is a flexible tagged container rather than a single fixed layout. It stores images without lossy compression, handles up to 16 bits per channel, and is understood by essentially every professional imaging tool. That flexibility cuts both ways — TIFF files are large, and the many variants mean an unusual TIFF occasionally confuses less capable software.
Pick TIFF for masters and archives, not for sharing. Browsers do not display TIFF, and the files are too heavy for email or the web — which is why converting TIFF to JPG or PNG is such a common task. Convertmaxxing handles both directions entirely in your browser, free, with no upload and no signup.
Strengths
- Lossless storage — the reference format for archives and print production
- Supports 16 bits per channel, giving real headroom for editing and scanning
- Understood by virtually every professional imaging and publishing tool
- A stable, documented standard trusted for long-term preservation
Limitations
- Very large files compared to any modern compressed format
- Browsers cannot display TIFF, so it is unusable on the web without conversion
- Many format variants — unusual TIFFs can trip up simpler software
A container, not a single format
The name is honest about the design: Tagged Image File Format. A TIFF is a directory of tagged fields describing how the image data is laid out — how many bits per channel, which colour space, which compression scheme, whether the data is stored in strips or tiles, and dozens of other properties. The pixels themselves come after, arranged however the tags say.
That extensibility is why TIFF has survived four decades of changing hardware, and also why "it is a TIFF" tells you surprisingly little. One TIFF might hold uncompressed 16-bit-per-channel RGB from a scanner; another might hold CMYK with LZW compression for a printer; another might be a multi-page fax in bilevel Group 4. All are valid, and software that handles one confidently can fail on another. It also means most camera RAW formats are technically TIFF variants under the skin.
When 16 bits per channel actually matters
An ordinary 8-bit image gives you 256 levels per colour channel, which is plenty for viewing but tight for editing. Push the exposure of an 8-bit photo a couple of stops and pull it back, and you will see banding across skies and gradients where levels that used to be distinct have collapsed into each other. A 16-bit TIFF has 65,536 levels per channel, so the same edits have enormous headroom and the rounding never becomes visible.
This is the real reason scanning and print workflows insist on TIFF. It is not that the format is magic; it is that it will faithfully store high-bit-depth data that JPEG structurally cannot, and will not quietly discard it. If you are converting a 16-bit TIFF to JPEG, be aware that the bit depth is reduced to 8 in the process — fine for a final image you are sending someone, but do it from a copy and keep the TIFF as your master.
Frequently asked questions
- Why can I not view a TIFF in my web browser?
- No mainstream browser has ever supported TIFF display, largely because the format is far too variable to implement safely and the files are far too large for the web. That is why converting TIFF to JPEG or PNG is such a routine task — it is the only practical way to put a scanned or archival image online or into an email.
- Is TIF the same as TIFF?
- Yes. Like JPG and JPEG, the three-letter version exists because of old DOS and Windows filename limits. Both extensions refer to the same format and can be renamed to each other freely.
- Does converting TIFF to JPEG lose quality?
- Yes, in two ways. JPEG compression is lossy, so some detail is discarded, and if the TIFF was 16-bit it is also reduced to 8 bits per channel. At quality 85 or above the result usually looks indistinguishable for viewing purposes — but keep the TIFF as your master rather than replacing it, because neither loss is reversible.
- Can a TIFF hold multiple pages?
- The format supports it, and multi-page TIFFs are common in document scanning and fax archives. Convertmaxxing converts a single image per file, so a multi-page TIFF will not come out the other side as a multi-page document. For document workflows, dedicated tools are the better fit.