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Drop one JPG or two hundred. Batch conversion is not a paid feature here.
A printer, a publisher or a records system has specified TIFF, and all that exists is a JPEG.
The JPEG is decoded and rewrapped as TIFF, normally with LZW or ZIP compression. TIFF can then hold the image without further loss through any number of future edits and re-saves.
Converting to TIFF does not make a JPEG press-ready. The compression damage is already in the pixels, and print shops asking for TIFF usually also want CMYK at 300 DPI, neither of which appears from nowhere during a format change.
No. It is a lossless container around an image that has already been through lossy compression.
It is old, fully documented, lossless and not going anywhere. Preservation standards favour formats that will still be readable in fifty years.
Drop one JPG or two hundred. Batch conversion is not a paid feature here.
Tagged Image File is lossless, so nothing is thrown away in the conversion.
Converted and deleted the moment it finishes. Never written to permanent storage.