File sharing guides

Practical guides on sending large files, browser-compatible formats, reducing file size, link security and what is recorded when a link is opened.

How to send large files without relying on email

Learn why email rejects large attachments, why messaging apps degrade photos and videos, and how to deliver the original file with a link.

Find out which image, video, audio and document formats a browser can display with nothing installed, and how to convert the ones that do not open.

See why ZIP barely helps with media, how to estimate video size from bitrate, and how to shrink PDFs, photos and recordings.

Understand who can open a sharing link, what not to upload, how to password-protect a file and what to check before downloading.

Compare temporary links, cloud storage and email attachments and pick the right one for each kind of delivery.

Learn which access data fstmp records when a link is opened, who can see it and why it does not identify who opened the file.