LUMIXA Guides

Practical, privacy-first guidance for working with PDFs, images, and everyday digital files.

• How to Compress a PDF on iPhone

  A practical guide to reducing PDF file size on iPhone from a browser, with privacy-first local processing tips.

• HEIC to JPG Conversion and Privacy

  Learn how to convert iPhone HEIC photos to JPG while keeping a privacy-first workflow and avoiding unnecessary uploads.

• How to Reduce PDF Size for Email

  Practical steps for making a PDF smaller before email, messaging, or online submission while checking the final file.