How to redact a pdf on chrome pdf#

Text Select, Text Search, and Text Extract At this point, however, PDF.js does not seem to possess any more or less vulnerabilities than other open-source projects. Each of the two issues warranted a “high” impact advisory.Īs with all open-source projects, especially popular ones, there’s always a chance of vulnerabilities that expose you or your users to attacks.

May 2018: Mozilla fixed two Firefox security vulnerabilities involving PDF.js.

August 2015: Mozilla issued a “critical” advisory, the highest such advisory level, after an ad on a Russian news site was discovered to exploit a same-origin policy violation to try and steal local files.

This exploit could have been used to gather info about local files via no more than normal browsing actions.

October 2013: Mozilla issued a “high” impact security advisory for a bypass of PDF.js checks using the iframe.

Mozilla patched each one very quickly, as they do for any threat to Firefox. PDF.js has had a few high-profile exploits over the years.

How to redact a pdf on chrome pdf#

PDF.js is reputed as a secure, sandboxed environment (within the iframe) as well as a suitable replacement for old-fashioned web PDF readers that relied upon security-challenged plugin technology. And what the facts show is that PDF.js works pretty good in some situations, and in others, it may not be ideal. We wanted to keep our analysis as objective as possible.

To help you avoid making the same mistakes, here are some useful tips and perspectives sourced from real-world PDF.js deployments to help in your PDF.js evaluation. However, as a vendor of a commercial PDF SDK, we hear from customers who come to us seeking an alternative after implementing PDF.js and later discovering that it cannot meet their needs.

Developers, therefore, appreciate PDF.js for the simplicity of its dependencies as well as how basic UI elements can be easily restyled via the project CSS and HTML files.ĭevs will often embed PDF.js to enable web viewing capabilities in their apps. PDF.js uses pure client-side JavaScript to render PDF file content into an HTML5 element. On Firefox, that’s PDF.js, a popular open-source JavaScript library published by Mozilla in 2011. If you view a PDF embedded in a web page, you would likely use the browser’s built-in PDF reader.