Help

Practical help for file prep decisions

These help pages answer practical file questions quickly, then point you straight to the tool you need.

Best format for email attachments

Pick practical formats for documents and images before sending, so attachments stay under limits.

A simple prep checklist for uploads: limits, format choice, resizing, and compression.

Reduce oversized PDF and image attachments with a grounded email-first workflow.

Check whether a downloaded or transferred file still matches the original before trusting it.

Choose the lighter web-friendly format for screenshots and transparent graphics without guessing.