Convert TIFF to PDF

Why convert your TIFFs to PDF with ModySign?

TIFF remains a dominant format for professional scanners, digital fax and administrative archiving — but it's poorly supported elsewhere: most browsers don't display it, many email clients block it as an attachment, and its size is often huge. Converting to PDF solves these issues in one step: PDF opens anywhere, sends without trouble, stays readable 10 years later.

Most online TIFF→PDF converters (Smallpdf, iLovePDF, ZAMZAR, CloudConvert) upload your scans to their foreign servers. For medical, legal, HR or accounting files, that's unacceptable. ModySign converts your TIFFs entirely in your browser thanks to UTIF and pdf-lib — your scans never leave your machine.

Typical use cases: convert archive scans for filing, turn a received TIFF fax into a forwardable PDF, group several TIFF pages into a single PDF, prepare a digital folder from office scans. Multi-page TIFFs are automatically split into sequential PDF pages.

Questions fréquentes

Are multi-page TIFFs handled?+

Yes. Our tool uses UTIF to decode every TIFF frame — each TIFF page becomes a PDF page in the original order. Useful for digital faxes or multi-sheet archive scans.

Are my TIFF scans uploaded to your servers?+

No, never. The conversion runs entirely in your browser via UTIF (JavaScript TIFF decoder) and pdf-lib. Your files NEVER leave your machine — unlike Smallpdf, iLovePDF, ZAMZAR or CloudConvert which upload your scans to their foreign servers.

Can I convert multiple TIFFs into the same PDF?+

Yes. Select multiple TIFF files at once — each file (and each page if multi-page) becomes a page of the final PDF in import order.

Is the photo / scan quality preserved?+

Yes. The TIFF is decoded to pixel-perfect RGBA then converted to lossless PNG before being embedded in the PDF. Quality is strictly identical to the original TIFF — which is also why the resulting PDF size can stay close to the original TIFF size.