cfdocument works well for low-volume PDF generation, but at scale it becomes a bottleneck because PDF rendering is CPU-intensive and runs synchronously on a request thread. The three highest-leverage fixes are: (1) move generation off the request thread with a queue using cfthread or runAsync(), (2) cache finished PDFs so identical documents are never re-rendered, and (3) offload storage and delivery to Amazon S3 using ColdFusion's native s3:// file support. Together, these keep your web tier responsive under heavy PDF load.
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Deepak Sir
Posted on • Originally published at Medium
ColdFusion cfdocument PDF Generation at Scale: Queueing, Caching, and S3 Offloading
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