Why convert TIFF to JPG?
TIFF is popular for scanning, archiving and print work because it can store images losslessly and at high bit depth. That also makes TIFF files very large, and browsers, phones and upload forms often can't open them. JPG is small and universal, so it is the usual format for sharing a TIFF.
Keep the original TIFF as your archive copy and use the JPG for everyday use.
What happens during conversion
The file is decoded on the server. If it contains several pages, only the first page is converted. High bit depth images, such as 16-bit scans, are converted to standard 8-bit color for JPG. Transparency becomes white.
TIFFs prepared for print may use CMYK color. These are converted to RGB, and colors can shift slightly. For accurate color, convert to RGB in your editing software first. The pixel dimensions stay the same, up to 80 megapixels.
Choosing a quality setting
The default of 90 percent keeps scans and photos clean, even for fine print and textures. For web use, 75 to 85 percent gives a much smaller file with little visible difference. Use the compare slider to check details. The browser can't preview TIFF files, so the original side shows a placeholder.
Scans, photos and print files
Scanners often save TIFF at 300 or 600 DPI. That DPI value is kept in the JPG, so a print shop or document system still sees the intended print size. Photographers often export TIFF from editing software for its quality, and a high-quality JPG of the same photo usually looks identical on screen. Compressed TIFFs, such as LZW and ZIP, are read just like uncompressed ones.