Convert TIFF to JPG: what to know
TIFF is what scanners, fax software, medical and print workflows produce: lossless, often enormous, and unopenable in most browsers, chat apps and upload forms. A 300 dpi A4 scan is 25 MB as an uncompressed TIFF and under 1 MB as a JPG that looks the same on screen. This page decodes TIFF files on your device — including LZW, PackBits and Deflate-compressed ones — and writes ordinary JPGs.
How to convert TIFF to JPG
Drop your .tif or .tiff files above; JPG is already selected. The first time you add one, a small decoder (about 100 KB) is fetched so the file can be read in the browser. Adjust the quality if you like (85 is the default and is visually identical for scans and photos), click Convert, then download each file or the whole batch as a ZIP. Up to 20 files of 20 MB each fit in one batch; larger uncompressed scans should be re-saved with LZW compression first, which makes them two to three times smaller without any loss.
What changes on the way to JPG
TIFF is usually lossless and JPG is lossy, so the converter re-encodes the pixels at the quality you choose. For text scans, quality 80–90 keeps letters clean; for photos 75–85 is plenty. If a scan must stay pixel-exact — a signature, a document for legal use — choose PNG instead.
Multi-page TIFFs (fax files, some scanner output) contribute their first page only; a JPG cannot hold several pages. If you need every page, convert the TIFF to PDF with Image to PDF instead, page by page, or ask your scanner for one file per page.
TIFF can store 16-bit channels, CMYK and transparency. Everything is converted to 8-bit RGB; transparent areas are filled with the background colour (white by default) because JPG has no alpha channel. Embedded TIFF tags — scanner model, resolution, GPS — are not copied into the JPG.
Which TIFFs work
Uncompressed, LZW, PackBits and Deflate/ZIP compressed files, RGB, grayscale, palette and bilevel (fax) images, with or without alpha, in either byte order. JPEG-compressed TIFF and exotic layouts (tiled YCbCr, some CMYK profiles) may fail with a clear message; re-saving from your scanner software as LZW TIFF fixes almost all of them. The 40-megapixel limit applies: a 600 dpi A3 scan is above it and should be scanned at 300 dpi or converted on a desktop tool.
Questions about TIFF to JPG
- Is the TIFF uploaded?
- No. Decoding and JPG encoding run in your browser; the file stays on your device.
- My TIFF has several pages — what happens?
- Only the first page becomes a JPG. Use Image to PDF for a multi-page result, or export one TIFF per page from the scanner.
- Why is the JPG so much smaller?
- TIFF is typically uncompressed or losslessly compressed; JPG discards detail you cannot see at normal sizes. Use PNG if you need lossless.