Browser vs server PDF tools: what hits the network
Understand when your PDF stays on-device and when it travels over TLS to a server.
In-browser tools keep bytes local when the format allows—great for quick merges and previews.
Server-side conversion is often needed for heavy Office exports, OCR, or proprietary codecs.
Always read the short privacy note on the tool you use; FileLumo states retention and TLS on every page.
This is a starter article for SEO structure—expand with screenshots, internal links to tools, and author bylines when you publish regularly.