---
title: "Active Storage"
description: "1 posts about Active Storage, summarised, each linking to the original."
---

# Active Storage
> 1 posts about Active Storage, summarised, each linking to the original.

## Articles

### [Rails 5.2 Active Storage: Previews, Poppler, and Solving Licensing Pitfalls](https://yomu.fyi/post/rails-5-2-active-storage-previews-poppler-and-solving-licensing-pitfal.md)
- Company: [Heroku](https://yomu.fyi/company/heroku.md)
- Author: Richard Schneeman
- Published: May 10, 2018
- Type: Tutorial

Rails 5.2’s Active Storage adds file uploads and attachments for Active Record models, with backing services such as AWS S3 and previews for PDFs and videos, but its beta PDF support depended on MuPDF. Security and legal review found MuPDF’s AGPL licensing could require commercial licensing, so Terence Lee updated Active Storage to support Poppler, an open-source PDF backend merged before release. Deployment guidance uses S3 through aws-sdk-s3, configures :amazon rather than the non-scalable local disk, and installs a custom buildpack containing FFmpeg and Poppler. The example Rails app attaches files to a Bulletin model, accepts uploads, and chooses PDF or video previews, image variants, or downloads according to available binaries and MiniMagick.