Files are compressed on your device. Nothing is uploaded.
How to compress a TIFF file
Drop one or more TIFF files into the tool. Each file is recompressed right away with the settings on the left, and you get a TIFF back, not a JPG or PNG. Multi-page files keep all their pages. Drag the divider on the preview to compare the original with the compressed version, flip through pages with the arrows, and switch to 100% to inspect fine detail.
The compressed side of the preview is read back from the new TIFF file, not from the settings. If it looks right there, that's what you're downloading.
Which TIFF compression should you use?
| Compression | Quality | Best for |
|---|---|---|
| LZW | Lossless | The safe default. Every program that opens TIFF files supports it. |
| ZIP / Deflate | Lossless | Usually a bit smaller than LZW. Supported by Photoshop, GIMP, macOS Preview, Windows and most modern software. |
| JPEG | Lossy | Photos and color scans where the smallest file matters more than perfect pixels. Some older software can't open JPEG-compressed TIFFs. |
| None | Lossless | Software that can't read compressed TIFFs at all. Combine with grayscale or resizing to still save space. |
Getting the biggest savings
For scanned text documents, switch Color to Black and white. That stores one bit per pixel instead of 24, and a full-page scan often drops from tens of megabytes to well under one. The tool picks the black and white cutoff automatically from each page.
For scans that don't need color, Grayscale cuts the size to about a third before compression even starts. For high-resolution scans going on screen rather than paper, resizing to 50% removes three quarters of the pixels. The DPI is adjusted to match, so the printed size stays the same.
The tool also drops metadata like EXIF, GPS, thumbnails, Photoshop layers and embedded color profiles. That alone can shrink files saved from Photoshop or camera software.
Frequently asked questions
Will compressing my TIFF reduce quality?
Not with LZW, ZIP or None. Those are lossless, so every pixel stays the same. Only JPEG compression, grayscale, black and white, and resizing change the image, and the preview shows you exactly how much.
Does it work with multi-page TIFFs?
Yes. Every page is compressed and the result is a single multi-page TIFF in the same order. Use the arrows on the preview to check each page.
What happens to 16-bit and CMYK TIFFs?
They're converted to standard 8-bit RGB. That's ideal for sharing and viewing, but if you need 16-bit precision or CMYK for professional printing, keep your original.
Why is my compressed TIFF bigger than the original?
The original may already have been compressed with something more efficient for that image, such as JPEG or CCITT fax compression for black and white scans. Try JPEG compression, Black and white, or resizing.
Are my files uploaded?
No. Your TIFFs are read and compressed in your browser and never leave your device. The page only downloads its TIFF reader.