filetity

TIFF or TIF -> PDF · Local tool

TIFF to PDF

Turn TIFF scans into one PDF, keeping every page of a multi-page file.

Last updated

  1. 01 / Your device

    the file stays here

  2. 02 / Browser memory

    the work runs locally

  3. 03 / Back to you

    saved on this device

When you would use this

Situations, not settings.

A scanner that gives you TIFF instead of PDF
Office scanners and fax software often write TIFF by default, and everyone you send it to wants a PDF.
A multi-page scan that has to stay one document
A contract scanned as one TIFF of eight sheets becomes one PDF of eight pages, rather than eight loose images.
Archived faxes nobody can open
Old fax archives are CCITT TIFFs, which most software refuses, and a PDF is readable on anything.

How it works / no cloud

A conversion engine, not an upload form.

filetity decodes the TIFF in the page, including the CCITT Group 3 and Group 4 fax compression scanners write, redraws each page and embeds it in a PDF built with pdf-lib. A multi-page TIFF becomes a multi-page PDF, one sheet per page, in order. The pages are embedded losslessly rather than re-compressed, because JPEG artefacts around black text are the thing that makes a scan look worse than the paper it came from. Nothing is uploaded.

  • Offline ready
  • Installable app
  • No file limit queue

Straight answers

No accordion. Nothing hidden.

Is it free?
Yes, with no watermark and no page limit.
Does it need an account?
No. There is no account system.
Is my file processed on my device?
Yes. The file is read by your browser and never uploaded. There is no server to send it to.
What formats are supported?
TIFF and TIF in, including multi-page files and CCITT fax compression. One PDF out, with a page per image.
What are the limits?
What is refused is refused by name rather than handed back damaged: PackBits, JPEG inside a TIFF, CMYK colour, floating point samples, separate colour planes, and tiled colour images. A refusal on any page refuses the file, because half a document is the same defect as the first page of one. Pages are embedded as lossless images, so a large scan makes a large PDF; run it through the PDF compressor afterwards if it needs to be emailed.
Does it work on mobile?
Yes, on any modern mobile browser. Large files are limited by the memory the phone gives the browser.
Does it work offline?
Yes. Nothing is downloaded to make this work, so it keeps working with no network connection once the page has loaded.
Does a multi-page TIFF stay multi-page?
Yes, and it is the reason to use this page rather than converting to an image first. A TIFF holding six scanned sheets becomes a PDF of six pages, in the order they are stored. Our image converters refuse a multi-page TIFF on purpose, because one image in has to mean one file out there; a PDF is the one output with somewhere to put the rest.
Will a fax or scanner TIFF work?
Yes. Those are usually CCITT Group 3 or Group 4, which is decoded here, in both bit orders and both black and white polarities. That is the compression most converters quietly refuse.
Is the scan re-compressed?
No. Each page goes into the PDF as a lossless image, so the pixels in the PDF are the pixels in the TIFF. That keeps text sharp, and it does mean the PDF can be large. Compressing it afterwards is a separate decision you can make with the result in front of you.
Can I put several TIFFs into one PDF?
Yes. Drop them all in and they are added in the order shown, which you can change before converting. Every page of every file goes in, so three two-page TIFFs give a six page PDF.

Keep working locally

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