How to send PDF campaigns

Why EcoSend Doesn't Support PDF Attachments

At EcoSend, we're committed to helping organisations reduce the environmental impact of their email marketing. One of the ways we do this is by not supporting PDF attachments within email campaigns.

Every attachment added to an email increases the amount of data that needs to be transferred and stored.

While a single PDF might only be a few megabytes, sending it to thousands of subscribers quickly adds up, consuming significantly more energy than a lightweight email.

By encouraging smaller email sizes, we help:

• Reduce the amount of data transferred across the internet.
• Lower the energy required by email servers, networks, and recipient devices.
• Improve email loading times, particularly on mobile connections.
• Create a better experience for recipients with slower internet speeds.
• Reduce the overall carbon footprint of your email campaigns.

This approach is part of our wider mission to make email marketing more sustainable without compromising effectiveness.

Sending PDF campaigns via hosted links

Instead of attaching a PDF directly to your campaign, we recommend hosting the document online and linking to via a button or hyperlink within your EcoSend campaign.

You can host the PDF on your:

• Website
• Resource centre
• Cloud storage (such as Google Drive, Dropbox or OneDrive)
• Any publicly accessible webpage

Once your PDF is available online, simply add a Call-to-Action (CTA) button or text hyperlink within your EcoSend campaign.

For example:

📄 Download our Annual Report

or

👉 Read the Full Guide

This keeps your email lightweight while still giving recipients easy access to the document.

Benefits of sending via hosted links

Hosting your PDF online offers several advantages beyond sustainability:

• Always up to date. If you need to make changes to the document, you can replace the hosted file without sending another email.
• Better analytics. You can track button clicks to see how many recipients were interested enough to view the document.
• Faster email delivery. Smaller emails are generally delivered more efficiently and are less likely to encounter size-related issues.
• Improved accessibility. Recipients can choose whether or not to download the document, rather than receiving a potentially large attachment automatically.