Digital rights groups are campaigning against the Copyright Directive, which the European Parliament will vote on later this month.
The legislation aims to protect rights-holders in the internet age.
But critics say it misunderstands the way people engage with web content and risks excessive censorship.
The Copyright Directive is an attempt to reshape copyright for the internet, in particular rebalancing the relationship between copyright holders and online platforms.
Article 13 states that platform providers should "take measures to ensure the functioning of agreements concluded with rights-holders for the use of their works".
Critics say this will, in effect, require all internet platforms to filter all content put online by users, which many believe would be an excessive restriction on free speech.
There is also concern that the proposals will rely on algorithms that will be programmed to "play safe" and delete anything that creates a risk for the platform.
