TIFF viewer

Intercepts any resource requests that end in .tif or .tiff and converts them into data urls using an emscripten port of libtiff.

TIFF Viewer Extension

"TIFF Viewer" is a Chrome extension that intercepts requests for TIFF images, converts them into data URLs, and renders them as PNG images in the browser.

Extension stats

Users: 114,579+
Rating: 2.90
(21)
Version: 1.1.0 (Last updated: 2019-09-16)
Creation date: 2019-09-16
Manifest version: 2
Permissions:
  • storage
  • webRequest
  • webRequestBlocking
  • tabs
  • <all_urls>
Size: 430.08K
Price: Free
URLs: Website

Other platforms

Not available on Android
Not available on Firefox
Not available on Edge
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Extension summary

The TIFF viewer extension will intercept a number of different requests for tiff images, capture the data and render it appropriately in the browser.

By hooking into the browser request we can detect most requests that would load a tiff image. Normally the browser would abort such requests since it cannot render the format. Instead we take over and load the image data. We can then use an in memory canvas element to render the image with the help of libtiff.js, a javascript port of the C TIFF library. The canvas element then gives us a image URL containing the decoded data as a PNG image that we can redirect to instead.

The end result is that tiff images are intercepted, turned into PNG images and end up rendering just fine in the browser.

User reviews

It works for me. Thanks so much.
by 이승환, 2021-05-17

Will only load first page of a tif file.
by Nick Ch, 2021-01-06

Indeed, only one page for multipage pdf unfortunately
by Jan-Dirk Schreurs, 2020-01-07
View all user reviews

Extension safety

Risk impact

TIFF viewer requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
  • Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
  • Low ******* ****** ** *** ********* ********
Risk likelihood

We don't have sufficient data to confidently determine the risk likelihood of TIFF viewer. Use it at your own risk.

Risk likelihood analysis details
  • Critical This extension is not longer available in the store
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