Where TIFF files come from
TIFF is the format of scanners, fax software and archives. Office multifunction printers often save scans as TIFF, document management systems export pages as TIFF, and photo labs or museums use it to store images without loss. Some older cameras and medical or engineering equipment also produce TIFF files.
The format is reliable, but it's heavy and not welcome everywhere. Many upload forms reject .tif files, most phones won't preview them, email attachments get too big, and websites can't display them at all. JPG is the opposite: light, universal and accepted practically everywhere, which is why converting a TIFF to JPG is the usual fix.
Multi-page TIFF files
A single TIFF can hold several pages, which is common with scanned contracts, faxes and batches of receipts. ConvertirDocs reads every page, not just the first one, and each page comes out as its own JPG. When there are several results, you can download them together in a ZIP.
If what you really need is one document with all the pages in order, use TIFF to PDF instead. It turns a multi-page TIFF into a PDF with one page per TIFF page, which is usually what an office, a court portal or an insurance company expects.
Choosing the JPG quality
TIFF scans are often stored without compression, so the JPG is usually much smaller. For photos, a high or medium quality looks the same as the original on screen. For scanned text, keep the quality high so small letters and signatures stay crisp, since JPG can soften fine lines at low quality.
If a portal also sets a size limit in KB, send the JPG to “Compress image” afterward and type the target size. You don't need to select the file again. If the scan is too large in pixels, “Resize image” can set a width and height.
Private and free
The conversion runs in your browser, so your TIFF files are never uploaded to a server or stored anywhere. That matters for scanned IDs, medical records, bank statements and signed contracts. There's no account, no sign-up and no limit on how many files you convert.
The JPG files you download carry no EXIF data, so camera or scanner details aren't copied into the new file. If a page has transparent areas, they become white, because JPG doesn't support transparency.