What is a TIFF File and When Should You Use It?

What is a TIFF File?

TIFF stands for Tagged Image File Format, created in 1986 as a flexible standard for storing high-quality images. A TIFF file is an uncompressed or losslessly compressed image, meaning every pixel of data is preserved exactly as captured. Unlike JPG, which discards data to reduce file size, TIFF keeps everything, making it ideal for professional work where quality cannot be compromised.

TIFF files are used in professional photography, medical imaging, printing preparation, archival document storage, and scanning. They are not used on the web because file sizes are enormous—a single photograph in TIFF can be 100 MB or more, whereas the same photo as JPG might be 5 MB.

TIFF vs JPG: When to Use Each

JPG is lossy compression: it discards data to reduce file size, which is fine for everyday photos because human eyes cannot detect the quality loss. JPG files are small (5–10 MB for a full-resolution photo) and are supported everywhere: phones, websites, email. Use JPG for sharing photos, posting on social media, and everyday storage.

TIFF is lossless compression (or uncompressed): it preserves every pixel, resulting in much larger files (50–100 MB per photo). TIFF is used when quality is critical: professional photographers use TIFF for archival copies of their work, medical facilities use TIFF for X-rays and scans, printing companies use TIFF for pre-press work. If you need to edit a photo repeatedly or preserve it for decades, TIFF is the right format.

Multi-Page TIFF: TIFF as a Document Format

One unique feature of TIFF is support for multiple pages in a single file, similar to PDF. A TIFF file can contain 100 pages of scanned documents, with each page stored losslessly. This makes TIFF useful for archiving scanned documents. However, TIFF is less universal than PDF: many people cannot open TIFF files without special software, whereas PDFs open on every device.

If you are archiving scanned documents for long-term storage, multi-page TIFF is a solid choice because the format is stable and lossless. If you are sharing documents with others, PDF is better because everyone can open it.

TIFF Compression Options

TIFF supports multiple compression options. Uncompressed TIFF stores all pixel data directly, resulting in the largest files. LZW (Lempel-Ziv-Welch) compression reduces file size by 30–50% without losing data. ZIP compression is similar. JPEG compression inside a TIFF container allows smaller files but introduces some quality loss.

Most professional TIFF files use LZW compression: you get smaller files than uncompressed TIFF but zero quality loss. This is the standard for archival and professional work.

When to Use TIFF

Use TIFF for: professional photography archival (keeping original files), medical imaging and scans, printing preparation, long-term document archiving, and any work where quality loss is unacceptable. Do not use TIFF for: sharing photos via email, posting on social media, web display, or everyday storage—JPG is more practical.

If you have scanned documents in TIFF format and need to share them, convert to PDF first. PDF is more universally supported and better suited for document sharing.

Frequently Asked Questions

Can I open a TIFF file on Windows or Mac without special software?

Mac's Preview app opens TIFF files natively. Windows does not have built-in TIFF support—you will need third-party software like Corel Photo Paint, ImageMagick, or online converters. Most photo editing software (Photoshop, GIMP) opens TIFF without issue.

Why are TIFF files so large?

TIFF preserves every pixel of data without discarding information. A 20-megapixel photo has 20 million pixels, and if each pixel is stored in full color (3 bytes per pixel), the uncompressed file is 60 MB. JPG compresses this aggressively, shrinking it to 5 MB with minimal visible quality loss. TIFF prioritizes quality over file size.

What is the difference between TIFF and RAW?

RAW is the unprocessed sensor data directly from a camera. TIFF is processed image data that has been demosaicked and color-corrected. Photographers shoot in RAW to preserve all capture data, then convert to TIFF or JPG after editing. TIFF is a standard format understood by most software, while RAW formats are camera-specific (Canon CR2, Nikon NEF, etc.).

Converting TIFF for Sharing

• PDF to PNG — Convert TIFF scans to PNG for web display.
• Merge PDF — Combine multiple TIFF scans after converting to PDF.