Guides

Fitting videos and PDFs under real-world size limits.

• How to send a video by Gmail (and why 25 MB really means ~18 MB)

  Base64 encoding, the bitrate math, and free ways to compress on a Mac.

• Discord file size limit (2026): 20 MB free, 50 MB Nitro Basic, 500 MB Nitro

  What changed in August 2026 and how to fit a clip under 20 MB.

• How to compress a video on Mac without losing quality

  QuickTime, Finder, iMovie and HandBrake — free, no watermark, audio intact.

• How to compress a PDF on Mac without losing quality

  Better Quartz filters, Ghostscript, and how to check pages and text survived.

• File size limits for email and chat apps

  Every limit SizeFit uses, with sources and the real target for email.