FreeWrench
TIFF to JPG
Scanners and print workflows love TIFF, but the files are huge and most websites reject them. JPG brings them down to a size you can actually send.
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How to use it
- Choose your .tif or .tiff files.
- Set the quality you need.
- Download the JPGs.
Good to know
Only the first page of a multi-page TIFF is converted.
Very large scans need plenty of memory. If a tab crashes, try a desktop computer rather than a phone.
What is lost, and whether it matters
| TIFF | JPG |
|---|---|
| Can be lossless | Always lossy |
| Can hold 16 bits per channel | Converted to 8 bits per channel |
| Can hold many pages | Only the first page is converted |
| Files of tens or hundreds of MB | Usually a small fraction of that |
Choosing a quality
For scanned text and line drawings, stay at 90% or higher, since sharp edges show compression quickly. For photographs, 85 to 90% is usually enough. Keep the TIFF if it is an archive scan, because you cannot get the lost data back from a JPG.
If a file will not open
Some TIFF files use unusual colour storage that this tool cannot decode, and it will tell you so instead of producing a blank picture. Exporting the file again from the scanning software, in RGB, normally solves it. Very large scans can also run out of memory on a phone.
Questions
How much space will I save?
A lot. An uncompressed TIFF often becomes a JPG less than a tenth of its size.
Should I delete the TIFF afterwards?
If it is an archive scan, keep it. TIFF is the better master copy.